基于Restful接口调用方法总结(超详细)

由于在实际项目中碰到的restful服务，参数都以JSON为准。这里我获取的接口和传入的参数都是json字符串类型。发布restful服务可参照文章 Jersey实现Restful服务(实例讲解)，以下接口调用基于此服务。

基于发布的Restful服务，下面总结几种常用的调用方法。

(1)Jersey API

package com.restful.client;import com.fasterxml.jackson.core.JsonProcessingException;import com.fasterxml.jackson.databind.ObjectMapper;import com.restful.entity.PersonEntity;import com.sun.jersey.api.client.Client;import com.sun.jersey.api.client.ClientResponse;import com.sun.jersey.api.client.WEBResource;import javax.ws.rs.core.MediaType;public class JerseyClient { private static String REST_API = "Http://localhost:8080/jerseyDemo/rest/JerseyService"; public static void main(String[] args) throws Exception {  getRandomResource();  addResource();  getAllResource(); } public static void getRandomResource() {  Client client = Client.create();  WebResource webResource = client.resource(REST_API + "/getRandomResource");  ClientResponse response = webResource.type(MediaType.APPLICATION_JSON).accept("application/json").get(ClientResponse.class);  String str = response.getEntity(String.class);  System.out.print("getRandomResource result is : " + str + "\n"); } public static void addResource() throws JsonProcessingException {  Client client = Client.create();  WebResource webResource = client.resource(REST_API + "/addResource/person");  ObjectMapper mapper = new ObjectMapper();  PersonEntity entity = new PersonEntity("NO2", "Joker", "http://");  ClientResponse response = webResource.type(MediaType.APPLICATION_JSON).accept(MediaType.APPLICATION_JSON).post(ClientResponse.class, mapper.writeValueAsString(entity));  System.out.print("addResource result is : " + response.getEntity(String.class) + "\n"); } public static void getAllResource() {  Client client = Client.create();  WebResource webResource = client.resource(REST_API + "/getAllResource");  ClientResponse response = webResource.type(MediaType.APPLICATION_JSON).accept("application/json").get(ClientResponse.class);  String str = response.getEntity(String.class);  System.out.print("getAllResource result is : " + str + "\n"); }}