spring4.x 集成 jersey2.2x 提供资源服务，以restful 风格

曾经终败给现在 2022-05-13 23:50 158阅读 0赞

开发环境这里就滤过：

说重点

1.整个工程目录结构：

![70][]

简单说明一下： resources 向外部提供的资源，service 包里有 service ，serviceimpl 实现类；

详细步骤主要是配置：

1.动态创建一个动态Web工程；

找到依赖jar包：

![70 1][]

![70 2][]

2.配置web.xml

<display-name>RestDemo3</display-name>  
      
    <listener>  
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
    </listener>  
    <listener>  
        <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>  
    </listener>

<context-param>  
        <param-name>contextConfigLocation</param-name>  
        <param-value>classpath:resources/applicationContext.xml</param-value>  
    </context-param>

<servlet>  
        <servlet-name>jersey-serlvet</servlet-name>  
        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>  
                  
         
        <init-param>   
                   <param-name>javax.ws.rs.Application</param-name>   
                   <param-value>com.ieds.rest.RestApplication</param-value>   
        </init-param>    
         
        <load-on-startup>1</load-on-startup>  
    </servlet>

<servlet-mapping>  
        <servlet-name>jersey-serlvet</servlet-name>  
        <url-pattern>/\*</url-pattern>  
    </servlet-mapping>

3.配置application-context.xml

<context:component-scan base-package="com.ieds.rest.\*" /> <!-- 扫描该类下所有含有@component,@service,@Repository -

4、![70 3][]

5、对外提供资源服务的资源类；

package com.ieds.rest.service;
    
    import org.springframework.stereotype.Service;
    
    
    @Service
    public class StudentServiceImpl implements StudentService {
    
    
    	@Override
    	public void doSomething(String msg) {
    		
    		System.out.println("do some thing:" + msg);
    		
    	}
    
    }

package com.ieds.rest.resources;
    
    import javax.ws.rs.GET;
    import javax.ws.rs.Path;
    import javax.ws.rs.QueryParam;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.ApplicationContext;
    import org.springframework.stereotype.Component;
    
    import com.ieds.rest.service.StudentService;
    /**
     * IE测试: http://localhost:8080/RestDemo2/student/resource1?msg=helloworld
     * @author yangrenjun
     *
     */
    @Component
    @Path("student")
    public class StudentResource {
    
    
        @Autowired
        private StudentService studentService;
    
    	@Autowired
        private ApplicationContext ctx;
    
    	
    	public void setStudentService(StudentService studentService) {
    		this.studentService = studentService;
    	}
    
       
    
        @Path("resource1")
        @GET
        public String resource1(@QueryParam("msg") String msg) {
            System.out.println("当前这个对象："+this);
            System.out.println("从容器里获取当前对象："+ctx.getBeansOfType(StudentResource.class));
            this.studentService.doSomething(msg);
            return "success";
        }
    }

6、通过浏览器输入：[http://localhost:8080/RestDemo3/student/resource1?msg=helloworld][http_localhost_8080_RestDemo3_student_resource1_msg_helloworld]

7、完成

[70]: /images/20220514/5bb430f9db604ed7a54ef9887bf8fdec.png
[70 1]: /images/20220514/3b0da46a9eeb45a4958bcfb99799dedf.png
[70 2]: /images/20220514/6cfa314a99bd4c7cb457d0c8202fa904.png
[70 3]: /images/20220514/7000bc5bfe544e06b5f26fdedb490643.png
[http_localhost_8080_RestDemo3_student_resource1_msg_helloworld]: http://localhost:8080/RestDemo2/student/resource1?msg=helloworld