Support JSPs in Embedded Jetty

JSPs are now supported in executable WARs with embedded Jetty.

Fixes gh-367
Closes gh-5290

spring-boot-samples/spring-boot-sample-jetty-jsp/src/main/java/sample/jetty/jsp/MyException.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2012-2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample.jetty.jsp;
+
+public class MyException extends RuntimeException {
+
+	public MyException(String message) {
+		super(message);
+	}
+
+}

spring-boot-samples/spring-boot-sample-jetty-jsp/src/main/java/sample/jetty/jsp/MyRestResponse.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2012-2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample.jetty.jsp;
+
+public class MyRestResponse {
+
+	private String message;
+
+	public MyRestResponse(String message) {
+		this.message = message;
+	}
+
+	public String getMessage() {
+		return this.message;
+	}
+
+}

spring-boot-samples/spring-boot-sample-jetty-jsp/src/main/java/sample/jetty/jsp/SampleJettyJspApplication.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2012-2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample.jetty.jsp;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.boot.context.web.SpringBootServletInitializer;
+
+@SpringBootApplication
+public class SampleJettyJspApplication extends SpringBootServletInitializer {
+
+	@Override
+	protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
+		return application.sources(SampleJettyJspApplication.class);
+	}
+
+	public static void main(String[] args) throws Exception {
+		SpringApplication.run(SampleJettyJspApplication.class, args);
+	}
+
+}

spring-boot-samples/spring-boot-sample-jetty-jsp/src/main/java/sample/jetty/jsp/WelcomeController.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2012-2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample.jetty.jsp;
+
+import java.util.Date;
+import java.util.Map;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@Controller
+public class WelcomeController {
+
+	@Value("${application.message:Hello World}")
+	private String message = "Hello World";
+
+	@RequestMapping("/")
+	public String welcome(Map<String, Object> model) {
+		model.put("time", new Date());
+		model.put("message", this.message);
+		return "welcome";
+	}
+
+	@RequestMapping("/fail")
+	public String fail() {
+		throw new MyException("Oh dear!");
+	}
+
+	@RequestMapping("/fail2")
+	public String fail2() {
+		throw new IllegalStateException();
+	}
+
+	@ExceptionHandler(MyException.class)
+	@ResponseStatus(HttpStatus.BAD_REQUEST)
+	public @ResponseBody MyRestResponse handleMyRuntimeException(MyException exception) {
+		return new MyRestResponse("Some data I want to send back to the client.");
+	}
+
+}

spring-boot-samples/spring-boot-sample-jetty-jsp/src/main/resources/application.properties

@@ -0,0 +1,3 @@
+spring.mvc.view.prefix: /WEB-INF/jsp/
+spring.mvc.view.suffix: .jsp
+application.message: Hello Spring Boot

spring-boot-samples/spring-boot-sample-jetty-jsp/src/main/webapp/WEB-INF/jsp/welcome.jsp

@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+
+<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
+
+<html lang="en">
+
+<body>
+	<c:url value="/resources/text.txt" var="url"/>
+	<spring:url value="/resources/text.txt" htmlEscape="true" var="springUrl" />
+	Spring URL: ${springUrl} at ${time}
+	<br>
+	JSTL URL: ${url}
+	<br>
+	Message: ${message}
+</body>
+
+</html>

spring-boot-samples/spring-boot-sample-jetty-jsp/src/test/java/sample/jetty/jsp/SampleWebJspApplicationTests.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2012-2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample.jetty.jsp;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.boot.context.embedded.LocalServerPort;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Basic integration tests for JSP application.
+ *
+ * @author Phillip Webb
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
+@DirtiesContext
+public class SampleWebJspApplicationTests {
+
+	@LocalServerPort
+	private int port;
+
+	@Test
+	public void testJspWithEl() throws Exception {
+		ResponseEntity<String> entity = new TestRestTemplate()
+				.getForEntity("http://localhost:" + this.port, String.class);
+		assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
+		assertThat(entity.getBody()).contains("/resources/text.txt");
+	}
+
+}