之前在做公司项目的一个功能需要写WebSerice接口,写完之后我们老大说也可以用HttpClient来写接口,所以写了一个接口例子。
4.0.0
com.wyj
wyj-interface-client
war
0.0.1-SNAPSHOT
wyj-interface-client Maven Webapp
http://maven.apache.org
junit
junit
4.12
test
org.apache.httpcomponents
httpclient
4.5.4
com.alibaba
fastjson
1.1.41
org.apache.cxf
cxf-rt-transports-http
3.1.8
org.apache.cxf
cxf-rt-frontend-jaxws
3.1.8
wyj-interface-client
可以传输json和map数据,可以使用get和post请求,详情见备注
package http;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.junit.Test;
import com.alibaba.fastjson.JSON;
/**
* http客户端
*
*
* @author:WangYuanJun
* @date:2017年12月20日 下午8:26:51
*/
public class HttpClientTest {
/**
* post请求传输map数据
*
* @param url
* @param map
* @param encoding
* @return
* @throws ClientProtocolException
* @throws IOException
*/
public static String sendPostDataByMap(String url, Map map, String encoding) throws ClientProtocolException, IOException {
String result = "";
// 创建httpclient对象
CloseableHttpClient httpClient = HttpClients.createDefault();
// 创建post方式请求对象
HttpPost httpPost = new HttpPost(url);
// 装填参数
List nameValuePairs = new ArrayList();
if (map != null) {
for (Entry entry : map.entrySet()) {
nameValuePairs.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
}
}
// 设置参数到请求对象中
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs, encoding));
// 设置header信息
// 指定报文头【Content-type】、【User-Agent】
httpPost.setHeader("Content-type", "application/x-www-form-urlencoded");
httpPost.setHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
// 执行请求操作,并拿到结果(同步阻塞)
CloseableHttpResponse response = httpClient.execute(httpPost);
// 获取结果实体
// 判断网络连接状态码是否正常(0--200都数正常)
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
result = EntityUtils.toString(response.getEntity(), "utf-8");
}
// 释放链接
response.close();
return result;
}
/**
* post请求传输json数据
*
* @param url
* @param json
* @param encoding
* @return
* @throws ClientProtocolException
* @throws IOException
*/
public static String sendPostDataByJson(String url, String json, String encoding) throws ClientProtocolException, IOException {
String result = "";
// 创建httpclient对象
CloseableHttpClient httpClient = HttpClients.createDefault();
// 创建post方式请求对象
HttpPost httpPost = new HttpPost(url);
// 设置参数到请求对象中
StringEntity stringEntity = new StringEntity(json, ContentType.APPLICATION_JSON);
stringEntity.setContentEncoding("utf-8");
httpPost.setEntity(stringEntity);
// 执行请求操作,并拿到结果(同步阻塞)
CloseableHttpResponse response = httpClient.execute(httpPost);
// 获取结果实体
// 判断网络连接状态码是否正常(0--200都数正常)
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
result = EntityUtils.toString(response.getEntity(), "utf-8");
}
// 释放链接
response.close();
return result;
}
/**
* get请求传输数据
*
* @param url
* @param encoding
* @return
* @throws ClientProtocolException
* @throws IOException
*/
public String sendGetData(String url, String encoding) throws ClientProtocolException, IOException {
String result = "";
// 创建httpclient对象
CloseableHttpClient httpClient = HttpClients.createDefault();
// 创建get方式请求对象
HttpGet httpGet = new HttpGet(url);
httpGet.addHeader("Content-type", "application/json");
// 通过请求对象获取响应对象
CloseableHttpResponse response = httpClient.execute(httpGet);
// 获取结果实体
// 判断网络连接状态码是否正常(0--200都数正常)
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
result = EntityUtils.toString(response.getEntity(), "utf-8");
}
// 释放链接
response.close();
return result;
}
@Test
public void testSendPostDataByMap() throws ClientProtocolException, IOException {
String url = "http://localhost:8080/httpService/sendPostDataByMap";
Map map = new HashMap();
map.put("name", "wyj");
map.put("city", "南京");
String body = sendPostDataByMap(url, map, "utf-8");
System.out.println("响应结果:" + body);
}
@Test
public void testSendPostDataByJson() throws ClientProtocolException, IOException {
String url = "http://localhost:8080/httpService/sendPostDataByJson";
Map map = new HashMap();
map.put("name", "wyj");
map.put("city", "南京");
String body = sendPostDataByJson(url, JSON.toJSONString(map), "utf-8");
System.out.println("响应结果:" + body);
}
@Test
public void testSendGetData() throws ClientProtocolException, IOException {
String url = "http://localhost:8080/httpService/sendGetData?name=wyj&city=南京";
String body = sendGetData(url, "utf-8");
System.out.println("响应结果:" + body);
}
}
package com.wyj.http;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
/**
* http服务端
*
*
* @author:WangYuanJun
* @date:2017年12月21日 下午8:27:08
*/
@RestController
@RequestMapping("/httpService")
public class HttpServiceTest {
@RequestMapping(value = "/sendPostDataByMap", method = RequestMethod.POST)
public String sendPostDataByMap(HttpServletRequest request, HttpServletResponse response) {
String result = "调用成功:数据是 " + "name:" + request.getParameter("name") + " city:" + request.getParameter("city");
return JSON.toJSONString(result);
}
@RequestMapping(value = "/sendPostDataByJson", method = RequestMethod.POST)
public String sendPostDataByJson(HttpServletRequest request, HttpServletResponse response, @RequestBody String requestBody) {
JSONObject jsonObject = JSONObject.parseObject(requestBody);
String result = "调用成功:数据是 " + "name:" + jsonObject.getString("name") + " city:" + jsonObject.getString("city");
return JSON.toJSONString(result);
}
@RequestMapping(value = "/sendGetData", method = RequestMethod.GET)
public String sendGetData(HttpServletRequest request, HttpServletResponse response) {
String result = "调用成功:数据是 " + "name:" + request.getParameter("name") + " city:" + request.getParameter("city");
return JSON.toJSONString(result);
}
}
SpringBoot整合的HttpClient客户端地址
SpringBoot整合的HttpClient服务端地址