我已经有一个maven项目，尝试导入spring框架 做一个基本的 Restful 应用程序。但似乎我的 Restful Controller 可以 没有得到请求。
我的 Controller :
package org.itri.ccma.paas.service.event.webservice;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
@RequestMapping(produces = "application/json")
public class MyController {
@RequestMapping(value = "/hello", method = RequestMethod.GET)
@ResponseBody
public String hello() {
return "true";
}
}
我的 pom.xml
...
<dependencies>
<!-- Springframework -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<build>
<finalName>PaaS</finalName>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<path>/PaaS</path>
<port>8080</port>
</configuration>
<dependencies>
</dependencies>
</plugin>
</plugins>
</build>
...
spring 配置文件“rest-servlet.xml” (和web.xml放在同一个文件夹)
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:task="http://www.springframework.org/schema/task"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<mvc:annotation-driven />
<mvc:default-servlet-handler/>
<!-- Activates annotation-based bean configuration -->
<context:annotation-config />
<!-- Scans for application @Components to deploy -->
<context:component-scan base-package="org.itri.ccma.paas.service.event.webservice.MyController" />
</beans>
我的 web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp" version="3.1"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_1.xsd">
<display-name>Archetype Created Web Application</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/rest-servlet.xml</param-value>
</context-param>
<listener>
<listener-class> org.springframework.web.context.ContextLoaderListener </listener-class>
</listener>
<servlet>
<servlet-name>rest</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextClass</param-name>
<param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>rest</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
我使用带有目标的 maven 运行:tomcat7:run
在那之后。我希望我可以像这样连接 URL http://127.0.0.1:8080/PaaS/rest/hello
然而它失败了。 报错信息(我使用Postman插件测试restful API):
<html>
<head>
<title>Apache Tomcat/7.0.47 - Error report</title>
<style>
<!--H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}A.name {color : black;}HR {color : #525D76;}-->
</style>
</head>
<body>
<h1>HTTP Status 404 - /PaaS/rest/hello</h1>
<HR size="1" noshade="noshade">
<p>
<b>type</b> Status report
</p>
<p>
<b>message</b>
<u>/PaaS/rest/hello</u>
</p>
<p>
<b>description</b>
<u>The requested resource is not available.</u>
</p>
<HR size="1" noshade="noshade">
<h3>Apache Tomcat/7.0.47</h3>
</body>
</html>
服务器端日志没有什么特别的:
151105 11:17:35 INFO (FrameworkServlet.java:488) FrameworkServlet 'rest': initialization started
151105 11:17:35 INFO (AbstractApplicationContext.java:573) Refreshing WebApplicationContext for namespace 'rest-servlet': startup date [Thu Nov 05 11:17:35 CST 2015]; parent: Root WebApplicationContext
151105 11:17:35 INFO (AutowiredAnnotationBeanPostProcessor.java:153) JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
151105 11:17:35 INFO (FrameworkServlet.java:507) FrameworkServlet 'rest': initialization completed in 42 ms
我在这里错过了什么？有什么建议吗？非常感谢!
最佳答案
在您的 rest-servlet.xml 中，更改
<context:component-scan base-package="org.itri.ccma.paas.service.event.webservice.MyController" />
到
<context:component-scan base-package="org.itri.ccma.paas.service.event.webservice" />
关于java - Java maven spring 框架的 Restful API 不工作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33536430/