jersey webservice

在web.xml里加入以下代码

  <!-- Jersey 配置 -->
  <servlet>
    <servlet-name>JerseyServlet</servlet-name>
    <servlet-class>com.sun.jersey.spi.spring.container.servlet.SpringServlet</servlet-class>
    <init-param>
      <param-name>com.sun.jersey.config.property.packages</param-name>
        <!-- 系统启动时扫描的包的路径-->
      <param-value>com.goodsoft</param-value>
    </init-param>   
  </servlet>
  
  <servlet-mapping>
    <servlet-name>JerseyServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

测试类

package com.goodsoft;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;

import com.sun.jersey.core.header.FormDataContentDisposition;
import com.sun.jersey.multipart.FormDataParam;

@Path("/test")
public class TestService {

	/**
	 * http://localhost:8080/webservice/test
	 */
	@GET
	@Produces(MediaType.TEXT_PLAIN)
	public String helloWorld() {
		String ret = "Hello World!";
		return ret;
	}

	/**
	 * http://localhost:8080/webservice/test/userlist
	 */
	@Path("/userlist")
	@GET
	@Produces( { MediaType.APPLICATION_XML })
	public List<User> getUsers() {
		List<User> users = new ArrayList<User>();
		for (long i = 1; i < 5; i++) {
			User user = new User();
			user.setUserId(i);
			user.setUserName("yuhan" + i);
			user.setNickName("supben" + i);
			users.add(user);
		}
		return users;
	}

	// 解析path中的参数id 用@PathParam
	/**
	 * http://localhost:8080/webservice/test/userinfo/1
	 */
	@Path("/userinfo/{id}")
	@GET
	@Produces( { MediaType.APPLICATION_XML })
	public User getUserById(@PathParam("id") Long id) {
		User user = new User();
		user.setUserId(id);
		user.setUserName("yuhan");
		user.setNickName("supben");
		return user;
	}

	/**
	 * http://localhost:8080/webservice/test/upload
	 * 有几个文件，就有几对参数，InputStream注解封装了文件的二进制流
	 * ，FormDataContentDisposition注解封装了对于文件的解析结果（包括文件名，文件后缀等） 演示一次获取多个文件的方法
	 */
	@POST
	@Path("/upload")
	@Consumes(MediaType.MULTIPART_FORM_DATA)
	public Response upload(@FormDataParam("file1") InputStream in1, @FormDataParam("file1") FormDataContentDisposition fd1,
			@FormDataParam("file2") InputStream in2, @FormDataParam("file2") FormDataContentDisposition fd2) {
		System.out.println(fd1.getFileName() + "------");
		FileUtils.writeToFile(in1, "d:/1.jpg");
		FileUtils.writeToFile(in2, "d:/2.jpg");
		return Response.ok().build();
	}

	/**
	 * http://localhost:8080/webservice/test/params/3/4?id=1&name=shen&age=3
	 * 演示一次获取多个path参数（跟在/后面的）和query参数(跟在?后面的) 的方法
	 */
	@GET
	@Path("/params/{a}/{b}")
	@Produces(MediaType.TEXT_PLAIN)
	public String params(@Context UriInfo ui) {
		MultivaluedMap<String, String> pathvalueMap = ui.getPathParameters();
		MultivaluedMap<String, String> queryvalueMap = ui.getQueryParameters();
		for (String s : pathvalueMap.keySet()) {
			System.out.println("path参数名称为" + s + ",参数的值为" + pathvalueMap.get(s));
		}

		for (String s : queryvalueMap.keySet()) {
			System.out.println("query参数名称为" + s + ",参数的值为" + queryvalueMap.get(s));
		}
		return "params method invoke success!";
	}

	/**
	 * http://localhost:8080/webservice/test/form演示获取form的全部参数的方法
	 */
	@POST
	@Path("/form")
	@Produces(MediaType.TEXT_PLAIN)
	public String form(MultivaluedMap<String, String> formParams) {
		for (String s : formParams.keySet()) {
			System.out.println("form参数名称为" + s + ",参数的值为" + formParams.get(s));
		}
		return "form method invoke success!";
	}

	/**
	 * http://localhost:8080/webservice/test/formupload演示获取form的全部参数和上传的文件的方法
	 */
	@POST
	@Path("/formupload")
	@Consumes(MediaType.MULTIPART_FORM_DATA)
	@Produces(MediaType.TEXT_PLAIN)
	public String formupload(@FormDataParam("file") InputStream in, @FormDataParam("file") FormDataContentDisposition fd,
			@FormDataParam("name") String name) {
		System.out.println(name);

		System.out.println(fd.getFileName() + "------");
		FileUtils.writeToFile(in, "d:/3.jpg");
		return "formupload method invoke success!";
	}
}