Polish
This commit is contained in:
Andy Wilkinson
parent
f02c390ee5
commit
e9c81bf702
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@ -334,8 +334,8 @@ discussed earlier.
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----
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You can additionally implement the `org.springframework.core.Ordered` interface or use
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the `org.springframework.core.annotation.Order` annotation if several `CommandLineRunner` or
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`ApplicationRunner` beans are defined that must be called in a specific order.
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the `org.springframework.core.annotation.Order` annotation if several `CommandLineRunner`
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or `ApplicationRunner` beans are defined that must be called in a specific order.
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@ -2848,11 +2848,12 @@ that you can see how to set things up.
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[[boot-features-security]]
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== Security
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If Spring Security is on the classpath, then web applications are secure by default. Spring Boot
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relies on Spring Security’s content-negotiation strategy to determine whether to use `httpBasic`
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or `formLogin`. To add method-level security to a web application, you can also add `@EnableGlobalMethodSecurity`
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with your desired settings. Additional information can be found in the {spring-security-reference}#jc-method[Spring
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Security Reference].
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If Spring Security is on the classpath, then web applications are secure by default.
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Spring Boot relies on Spring Security’s content-negotiation strategy to determine whether
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to use `httpBasic`
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or `formLogin`. To add method-level security to a web application, you can also add
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`@EnableGlobalMethodSecurity` with your desired settings. Additional information can be
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found in the {spring-security-reference}#jc-method[Spring Security Reference].
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The default `AuthenticationManager` has a single user (the user name is '`user`', and the
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password is random and is printed at INFO level when the application starts), as shown in
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@ -2871,8 +2872,8 @@ The default security configuration is implemented in `SecurityAutoConfiguration`
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the classes imported from there (`SpringBootWebSecurityConfiguration` for web security
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and `AuthenticationManagerConfiguration` for authentication configuration, which is also
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relevant in non-web applications). To switch off the default web application security
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configuration completely, you can add a bean of type `WebSecurityConfigurerAdapter` (this does not
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disable the authentication manager configuration or Actuator's security).
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configuration completely, you can add a bean of type `WebSecurityConfigurerAdapter` (this
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does not disable the authentication manager configuration or Actuator's security).
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To also switch off the authentication manager configuration, you can add a bean of type
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`UserDetailsService`, `AuthenticationProvider` or `AuthenticationManager`.
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@ -2881,15 +2882,17 @@ Boot samples] to get you started with common use cases.
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The basic features you get by default in a web application are:
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* A `UserDetailsService` bean with in-memory store and a single user with a generated password.
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* Form-based login or HTTP Basic security (depending on Content-Type) for the entire application (including
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actuator endpoints if actuator is on the classpath).
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* A `UserDetailsService` bean with in-memory store and a single user with a generated
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password.
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* Form-based login or HTTP Basic security (depending on Content-Type) for the entire
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application (including actuator endpoints if actuator is on the classpath).
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Access rules can be overriden by adding a custom `WebSecurityConfigurerAdapter`. Spring Boot
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provides convenience methods that can be used to override access rules for actuator endpoints
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and static resources. `EndpointRequest` can be used to create a `RequestMatcher` that is based on the
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`management.endpoints.web.base-path` property. `StaticResourceRequest` can be used to
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create a `RequestMatcher` for static resources in commonly used locations.
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Access rules can be overriden by adding a custom `WebSecurityConfigurerAdapter`. Spring
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Boot provides convenience methods that can be used to override access rules for actuator
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endpoints and static resources. `EndpointRequest` can be used to create a `RequestMatcher`
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that is based on the `management.endpoints.web.base-path` property.
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`StaticResourceRequest` can be used to create a `RequestMatcher` for static resources in
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commonly used locations.
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[[boot-features-security-oauth2]]
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=== OAuth2
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@ -4644,12 +4647,12 @@ infrastructure to send and receive messages.
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[[boot-features-activemq]]
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==== ActiveMQ Support
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When ActiveMQ is available on the classpath, Spring Boot can also configure a
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`ConnectionFactory`. If the broker is present, an embedded broker is automatically
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started and configured (provided no broker URL is specified through configuration).
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`ConnectionFactory`. If the broker is present, an embedded broker is automatically started
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and configured (provided no broker URL is specified through configuration).
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NOTE: If you use `spring-boot-starter-activemq`, the necessary dependencies to connect or
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embed an ActiveMQ instance are provided, as is the Spring infrastructure to integrate
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with JMS.
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embed an ActiveMQ instance are provided, as is the Spring infrastructure to integrate with
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JMS.
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ActiveMQ configuration is controlled by external configuration properties in
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`+spring.activemq.*+`. For example, you might declare the following section in
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@ -4784,12 +4787,12 @@ default one is configured automatically. If a `DestinationResolver` or a
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factory.
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By default, the default factory is transactional. If you run in an infrastructure where a
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`JtaTransactionManager` is present, it is associated to the listener container by
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default. If not, the `sessionTransacted` flag is enabled. In that latter scenario, you
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can associate your local data store transaction to the processing of an incoming message
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by adding `@Transactional` on your listener method (or a delegate thereof). This ensures
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that the incoming message is acknowledged, once the local transaction has completed. This
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also includes sending response messages that have been performed on the same JMS session.
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`JtaTransactionManager` is present, it is associated to the listener container by default.
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If not, the `sessionTransacted` flag is enabled. In that latter scenario, you can
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associate your local data store transaction to the processing of an incoming message by
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adding `@Transactional` on your listener method (or a delegate thereof). This ensures that
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the incoming message is acknowledged, once the local transaction has completed. This also
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includes sending response messages that have been performed on the same JMS session.
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The following component creates a listener endpoint on the `someQueue` destination:
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@ -4857,9 +4860,9 @@ Then you can use the factory in any `@JmsListener`-annotated method as follows:
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=== AMQP
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The Advanced Message Queuing Protocol (AMQP) is a platform-neutral, wire-level protocol
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for message-oriented middleware. The Spring AMQP project applies core Spring concepts to
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the development of AMQP-based messaging solutions. Spring Boot offers several
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conveniences for working with AMQP through RabbitMQ, including the
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`spring-boot-starter-amqp` '`Starter`'.
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the development of AMQP-based messaging solutions. Spring Boot offers several conveniences
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for working with AMQP through RabbitMQ, including the `spring-boot-starter-amqp`
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'`Starter`'.
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@ -4936,9 +4939,8 @@ When the Rabbit infrastructure is present, any bean can be annotated with
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`@RabbitListener` to create a listener endpoint. If no `RabbitListenerContainerFactory`
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has been defined, a default `SimpleRabbitListenerContainerFactory` is automatically
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configured and you can switch to a direct container using the
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`spring.rabbitmq.listener.type` property. If a `MessageConverter` or a
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`MessageRecoverer` bean is defined, it is automatically associated with the default
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factory.
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`spring.rabbitmq.listener.type` property. If a `MessageConverter` or a `MessageRecoverer`
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bean is defined, it is automatically associated with the default factory.
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The following sample component creates a listener endpoint on the `someQueue` queue:
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@ -5098,18 +5100,18 @@ The following component creates a listener endpoint on the `someTopic` topic:
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==== Additional Kafka Properties
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The properties supported by auto configuration are shown in
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<<common-application-properties>>. Note that, for the most part, these properties
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(hyphenated or camelCase) map directly to the Apache Kafka dotted properties. Refer to
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the Apache Kafka documentation for details.
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(hyphenated or camelCase) map directly to the Apache Kafka dotted properties. Refer to the
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Apache Kafka documentation for details.
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The first few of these properties apply to both producers and consumers but can be
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specified at the producer or consumer level if you wish to use different values for each.
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Apache Kafka designates properties with an importance of HIGH, MEDIUM, or LOW. Spring
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Boot auto-configuration supports all HIGH importance properties, some selected MEDIUM and
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LOW properties, and any properties that do not have a default value.
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Apache Kafka designates properties with an importance of HIGH, MEDIUM, or LOW. Spring Boot
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auto-configuration supports all HIGH importance properties, some selected MEDIUM and LOW
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properties, and any properties that do not have a default value.
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Only a subset of the properties supported by Kafka are available through the
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`KafkaProperties` class. If you wish to configure the producer or consumer with
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additional properties that are not directly supported, use the following properties:
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`KafkaProperties` class. If you wish to configure the producer or consumer with additional
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properties that are not directly supported, use the following properties:
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[source,properties,indent=0]
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----
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@ -5172,8 +5174,8 @@ new `RestTemplateBuilder` instance, so the customizations only affect this use o
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builder.
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To make an application-wide, additive customization, use a `RestTemplateCustomizer` bean.
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All such beans are automatically registered with the auto-configured
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`RestTemplateBuilder` and are applied to any templates that are built with it.
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All such beans are automatically registered with the auto-configured `RestTemplateBuilder`
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and are applied to any templates that are built with it.
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The following example shows a customizer that configures the use of a proxy for all hosts
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except `192.168.0.5`:
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@ -5226,8 +5228,8 @@ The following code shows a typical example:
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[[boot-features-webclient-customization]]
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=== WebClient Customization
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There are three main approaches to `WebClient` customization, depending on how broadly
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you want the customizations to apply.
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There are three main approaches to `WebClient` customization, depending on how broadly you
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want the customizations to apply.
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To make the scope of any customizations as narrow as possible, inject the auto-configured
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`WebClient.Builder` and then call its methods as required. `WebClient.Builder` instances
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@ -5239,8 +5241,8 @@ To make an application-wide, additive customization to all `WebClient.Builder` i
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you can declare `WebClientCustomizer` beans and change the `WebClient.Builder` locally at
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the point of injection.
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Finally, you can fall back to the original API and use `WebClient.create()`. In that
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case, no auto-configuration or `WebClientCustomizer` is applied.
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Finally, you can fall back to the original API and use `WebClient.create()`. In that case,
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no auto-configuration or `WebClientCustomizer` is applied.
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@ -5308,12 +5310,12 @@ either an http://www.atomikos.com/[Atomikos] or https://github.com/bitronix/btm[
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embedded transaction manager. JTA transactions are also supported when deploying to a
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suitable Java EE Application Server.
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When a JTA environment is detected, Spring's `JtaTransactionManager` is used to
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manage transactions. Auto-configured JMS, DataSource, and JPA beans are upgraded to
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support XA transactions. You can use standard Spring idioms, such as `@Transactional`, to
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participate in a distributed transaction. If you are within a JTA environment and still
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want to use local transactions, you can set the `spring.jta.enabled` property to `false`
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to disable the JTA auto-configuration.
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When a JTA environment is detected, Spring's `JtaTransactionManager` is used to manage
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transactions. Auto-configured JMS, DataSource, and JPA beans are upgraded to support XA
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transactions. You can use standard Spring idioms, such as `@Transactional`, to participate
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in a distributed transaction. If you are within a JTA environment and still want to use
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local transactions, you can set the `spring.jta.enabled` property to `false` to disable
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the JTA auto-configuration.
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@ -5335,8 +5337,8 @@ your `application.properties` file. Properties starting with
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for complete details.
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NOTE: To ensure that multiple transaction managers can safely coordinate the same
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resource managers, each Atomikos instance must be configured with a unique ID. By
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default, this ID is the IP address of the machine on which Atomikos is running. To ensure
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resource managers, each Atomikos instance must be configured with a unique ID. By default,
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this ID is the IP address of the machine on which Atomikos is running. To ensure
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uniqueness in production, you should configure the `spring.jta.transaction-manager-id`
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property with a different value for each instance of your application.
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@ -5358,8 +5360,8 @@ https://github.com/bitronix/btm/wiki/Transaction-manager-configuration[Bitronix
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documentation] for details.
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NOTE: To ensure that multiple transaction managers can safely coordinate the same
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resource managers, each Bitronix instance must be configured with a unique ID. By
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default, this ID is the IP address of the machine on which Bitronix is running. To ensure
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resource managers, each Bitronix instance must be configured with a unique ID. By default,
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this ID is the IP address of the machine on which Bitronix is running. To ensure
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uniqueness in production, you should configure the `spring.jta.transaction-manager-id`
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property with a different value for each instance of your application.
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@ -5465,8 +5467,8 @@ If you define a `com.hazelcast.config.Config` bean, Spring Boot uses that. If yo
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configuration defines an instance name, Spring Boot tries to locate an existing instance
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rather than creating a new one.
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You could also specify the `hazelcast.xml` configuration file to use via configuration,
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as shown in the following example:
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You could also specify the `hazelcast.xml` configuration file to use via configuration, as
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shown in the following example:
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[source,properties,indent=0]
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----
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@ -5503,8 +5505,8 @@ auto-configured (via the `SchedulerFactoryBean` abstraction).
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Beans of the following types are automatically picked up and associated with the the
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`Scheduler`:
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* `JobDetail`: defines a particular Job. `JobDetail` instances can be built with
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the `JobBuilder` API.
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* `JobDetail`: defines a particular Job. `JobDetail` instances can be built with the
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`JobBuilder` API.
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* `Calendar`.
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* `Trigger`: defines when a particular job is triggered.
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@ -5569,11 +5571,11 @@ abstractions over messaging and also other transports such as HTTP, TCP, and oth
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Spring Integration is available on your classpath, it is initialized through the
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`@EnableIntegration` annotation.
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Spring Boot also configures some features that are triggered by the presence of
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additional Spring Integration modules. If `'spring-integration-jmx'` is also on the
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classpath, message processing statistics are published over JMX . If
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`'spring-integration-jdbc'` is available, the default database schema can be created on
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startup, as shown in the following line:
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Spring Boot also configures some features that are triggered by the presence of additional
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Spring Integration modules. If `'spring-integration-jmx'` is also on the classpath,
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message processing statistics are published over JMX . If `'spring-integration-jdbc'` is
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available, the default database schema can be created on startup, as shown in the
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following line:
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[source,properties,indent=0]
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----
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@ -6239,11 +6241,10 @@ A list of the auto-configuration settings that are enabled by `@DataJpaTest` can
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also configures an in-memory embedded database and a `JdbcTemplate`. Regular `@Component`
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beans are not loaded into the `ApplicationContext`.
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By default, JDBC tests are transactional and roll back at the end of each test.
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See the {spring-reference}testing.html#testcontext-tx-enabling-transactions[relevant
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section] in the Spring Framework Reference Documentation for more details. If that is not
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what you want, you can disable transaction management for a test or for the whole class
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as follows:
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By default, JDBC tests are transactional and roll back at the end of each test. See the
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{spring-reference}testing.html#testcontext-tx-enabling-transactions[relevant section] in
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the Spring Framework Reference Documentation for more details. If that is not what you
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want, you can disable transaction management for a test or for the whole class as follows:
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[source,java,indent=0]
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----
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@ -6362,10 +6363,10 @@ A list of the auto-configuration settings that are enabled by `@DataMongoTest` c
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[[boot-features-testing-spring-boot-applications-testing-autoconfigured-neo4j-test]]
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==== Auto-configured Data Neo4j Tests
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You can use `@DataNeo4jTest` to test Neo4j applications. By default, it
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uses an in-memory embedded Neo4j (if the embedded driver is available), scans for
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`@NodeEntity` classes, and configures Spring Data Neo4j repositories. Regular
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`@Component` beans are not loaded into the `ApplicationContext`:
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You can use `@DataNeo4jTest` to test Neo4j applications. By default, it uses an in-memory
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embedded Neo4j (if the embedded driver is available), scans for `@NodeEntity` classes, and
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configures Spring Data Neo4j repositories. Regular `@Component` beans are not loaded into
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the `ApplicationContext`:
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[source,java,indent=0]
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----
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@ -6536,8 +6537,7 @@ A list of the auto-configuration settings that are enabled by `@RestClientTest`
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[[boot-features-testing-spring-boot-applications-testing-autoconfigured-rest-docs]]
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==== Auto-configured Spring REST Docs Tests
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You can use the `@AutoConfigureRestDocs` annotation to use Spring REST Docs in your tests
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with Mock MVC or REST Assured. It removes the need for the JUnit rule in Spring REST
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Docs.
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with Mock MVC or REST Assured. It removes the need for the JUnit rule in Spring REST Docs.
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`@AutoConfigureRestDocs` can be used to override the default output directory
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(`target/generated-snippets` if you are using Maven or `build/generated-snippets` if you
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@ -6680,9 +6680,9 @@ at the same level as your application, as shown in the following example:
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----
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NOTE: Depending on the complexity of your application, you may either have a single
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`ApplicationConfiguration` class for your customizations or one class per domain area
|
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when it makes sense. The latter approach lets you enable it in one of your tests, if
|
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necessary, with the `@Import` annotation.
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`ApplicationConfiguration` class for your customizations or one class per domain area when
|
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it makes sense. The latter approach lets you enable it in one of your tests, if necessary,
|
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with the `@Import` annotation.
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Another source of confusion is classpath scanning. Assume that, while you structured your
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code in a sensible way, you need to scan an additional package. Your application may
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@ -6860,7 +6860,7 @@ following example:
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[[boot-features-websockets]]
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== WebSockets
|
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Spring Boot provides WebSockets auto-configuration for embedded Tomcat (8 and 7), Jetty
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Spring Boot provides WebSockets auto-configuration for embedded Tomcat 8.5, Jetty
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9, and Undertow. If you deploy a war file to a standalone container, Spring Boot assumes
|
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that the container is responsible for the configuration of its WebSocket support.
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@ -6977,18 +6977,18 @@ annotations include:
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[[boot-features-class-conditions]]
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==== Class Conditions
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The `@ConditionalOnClass` and `@ConditionalOnMissingClass` annotations let
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configuration be included based on the presence or absence of specific classes. Due to
|
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the fact that annotation metadata is parsed by using http://asm.ow2.org/[ASM], you can
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use the `value` attribute to refer to the real class, even though that class might not
|
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actually appear on the running application classpath. You can also use the `name`
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attribute if you prefer to specify the class name by using a `String` value.
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The `@ConditionalOnClass` and `@ConditionalOnMissingClass` annotations let configuration
|
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be included based on the presence or absence of specific classes. Due to the fact that
|
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annotation metadata is parsed by using http://asm.ow2.org/[ASM], you can use the `value`
|
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attribute to refer to the real class, even though that class might not actually appear on
|
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the running application classpath. You can also use the `name` attribute if you prefer to
|
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specify the class name by using a `String` value.
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[TIP]
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====
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If you use `@ConditionalOnClass` or `@ConditionalOnMissingClass` as a part of a
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meta-annotation to compose your own composed annotations, you must use `name` as
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referring to the class in such a case is not handled.
|
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meta-annotation to compose your own composed annotations, you must use `name` as referring
|
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to the class in such a case is not handled.
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====
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|
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@ -7025,9 +7025,9 @@ recommend only using `@ConditionalOnBean` and `@ConditionalOnMissingBean` annota
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auto-configuration classes (since these are guaranteed to load after any user-defined
|
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bean definitions have been added).
|
||||
|
||||
NOTE: `@ConditionalOnBean` and `@ConditionalOnMissingBean` do not prevent
|
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`@Configuration` classes from being created. Using these conditions at the class level is
|
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equivalent to marking each contained `@Bean` method with the annotation.
|
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NOTE: `@ConditionalOnBean` and `@ConditionalOnMissingBean` do not prevent `@Configuration`
|
||||
classes from being created. Using these conditions at the class level is equivalent to
|
||||
marking each contained `@Bean` method with the annotation.
|
||||
|
||||
|
||||
|
||||
|
|
@ -7051,10 +7051,10 @@ conventions, as shown in the following example: `file:/home/user/test.dat`.
|
|||
|
||||
[[boot-features-web-application-conditions]]
|
||||
==== Web Application Conditions
|
||||
The `@ConditionalOnWebApplication` and `@ConditionalOnNotWebApplication` annotations
|
||||
let configuration be included depending on whether the application is a 'web
|
||||
application'. A web application is any application that is using a Spring
|
||||
`WebApplicationContext`, defines a `session` scope, or has a `StandardServletEnvironment`.
|
||||
The `@ConditionalOnWebApplication` and `@ConditionalOnNotWebApplication` annotations let
|
||||
configuration be included depending on whether the application is a 'web application'.
|
||||
A web application is any application that is using a Spring `WebApplicationContext`,
|
||||
defines a `session` scope, or has a `StandardServletEnvironment`.
|
||||
|
||||
|
||||
|
||||
|
|
@ -7082,8 +7082,8 @@ single module if you do not need to separate those two concerns.
|
|||
[[boot-features-custom-starter-naming]]
|
||||
==== Naming
|
||||
You should make sure to provide a proper namespace for your starter. Do not start your
|
||||
module names with `spring-boot`, even if you are using a different Maven `groupId`. We
|
||||
may offer an official support for the thing you auto-configure in the future.
|
||||
module names with `spring-boot`, even if you are using a different Maven `groupId`. We may
|
||||
offer official support for the thing you auto-configure in the future.
|
||||
|
||||
As a rule of thumb, you should name a combined module after the starter. For example,
|
||||
assume that you are creating a starter for "acme" and that you name the auto-configure
|
||||
|
|
|
|||
Loading…
Reference in New Issue