Add CLASSPATH elements back to spring CLI script

Also add @WebConfiguration as a shortcut for groovy
scripts to get MVC behaviour (without a @Controller)

[#54926366]

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration.java

@@ -16,12 +16,15 @@
 
 package org.springframework.boot.autoconfigure.web;
 
+import java.io.IOException;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 
 import javax.servlet.Servlet;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.ListableBeanFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -99,6 +102,8 @@ public class WebMvcAutoConfiguration {
 	@EnableWebMvc
 	public static class WebMvcAutoConfigurationAdapter extends WebMvcConfigurerAdapter {
 
+		private static Log logger = LogFactory.getLog(WebMvcConfigurerAdapter.class);
+
 		@Autowired
 		private ListableBeanFactory beanFactory;
 
@@ -162,6 +167,12 @@ public class WebMvcAutoConfiguration {
 		private void addStaticIndexHtmlViewControllers(ViewControllerRegistry registry) {
 			for (String resource : STATIC_INDEX_HTML_RESOURCES) {
 				if (this.resourceLoader.getResource(resource).exists()) {
+					try {
+						logger.info("Adding welcome page: "
+								+ this.resourceLoader.getResource(resource).getURL());
+					}
+					catch (IOException e) {
+					}
 					registry.addViewController("/").setViewName("/index.html");
 					return;
 				}

spring-boot-cli/src/main/executablecontent/bin/spring

@@ -79,7 +79,13 @@ if [ ! -d "${SPRING_HOME}" ]; then
 	exit 2
 fi
 
-CLASSPATH="${SPRING_HOME}/lib/*"
+CLASSPATH=.:${SPRING_HOME}/bin
+if [ -d ${SPRING_HOME}/ext ]; then
+	CLASSPATH=$CLASSPATH:${SPRING_HOME}/ext
+fi
+for f in ${SPRING_HOME}/lib/*; do
+	CLASSPATH=$CLASSPATH:$f
+done
 
 if $cygwin; then
 	SPRING_HOME=`cygpath --path --mixed "$SPRING_HOME"`

spring-boot-cli/src/main/java/org/springframework/boot/cli/compiler/autoconfigure/SpringMvcCompilerAutoConfiguration.java

@@ -16,6 +16,12 @@
 
 package org.springframework.boot.cli.compiler.autoconfigure;
 
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
 import org.codehaus.groovy.ast.ClassNode;
 import org.codehaus.groovy.control.customizers.ImportCustomizer;
 import org.springframework.boot.cli.compiler.AstUtils;
@@ -47,7 +53,8 @@ public class SpringMvcCompilerAutoConfiguration extends CompilerAutoConfiguratio
 
 	@Override
 	public boolean matches(ClassNode classNode) {
-		return AstUtils.hasAtLeastOneAnnotation(classNode, "Controller", "EnableWebMvc");
+		return AstUtils.hasAtLeastOneAnnotation(classNode, "Controller", "EnableWebMvc",
+				"WebConfiguration");
 	}
 
 	@Override
@@ -58,6 +65,13 @@ public class SpringMvcCompilerAutoConfiguration extends CompilerAutoConfiguratio
 				"org.springframework.web.servlet.handler", "org.springframework.http");
 		imports.addStaticImport("org.springframework.boot.cli.template.GroovyTemplate",
 				"template");
+		imports.addImports(WebConfiguration.class.getCanonicalName());
+	}
+
+	@Target(ElementType.TYPE)
+	@Retention(RetentionPolicy.SOURCE)
+	@Documented
+	public static @interface WebConfiguration {
 	}
 
 }