标签:cli port ram 默认 idea key char slf4j factor
1. pom.xml
<dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.3</version> </dependency>
2. HttpClient.java
package com.midea.clean.util; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.util.ArrayList; import java.util.List; import java.util.Map; import java.util.Set; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.ParseException; 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.client.methods.HttpUriRequest; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.protocol.HTTP; import org.apache.http.util.EntityUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.alibaba.fastjson.JSONObject; import com.midea.clean.bo.UserBo; public class HttpClient { private static final Logger LOGGER = LoggerFactory.getLogger(HttpClient.class); /** * 发送post请求 * @param url * @param params * @return */ public static String post(String url, Map<String, String> params) { DefaultHttpClient httpclient = new DefaultHttpClient(); String body = null; HttpPost post = postForm(url, params); body = invoke(httpclient, post); httpclient.getConnectionManager().shutdown(); return body; } /** * 发送get请求 * @param url * @return */ public static String get(String url) { DefaultHttpClient httpclient = new DefaultHttpClient(); String body = null; HttpGet get = new HttpGet(url); body = invoke(httpclient, get); httpclient.getConnectionManager().shutdown(); return body; } private static String invoke(DefaultHttpClient httpclient, HttpUriRequest httpost) { HttpResponse response = sendRequest(httpclient, httpost); String body = paseResponse(response); return body; } private static String paseResponse(HttpResponse response) { HttpEntity entity = response.getEntity(); String charset = EntityUtils.getContentCharSet(entity); String body = null; try { body = EntityUtils.toString(entity); } catch (ParseException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return body; } private static HttpResponse sendRequest(DefaultHttpClient httpclient, HttpUriRequest httpost) { HttpResponse response = null; try { response = httpclient.execute(httpost); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return response; } private static HttpPost postForm(String url, Map<String, String> params) { HttpPost httpost = new HttpPost(url); List<NameValuePair> nvps = new ArrayList<NameValuePair>(); // 需要传一个token //httpost.setHeader("token", "c7a4e021-6527-11e6-96be-fcaa14c3021a1"); Set<String> keySet = params.keySet(); for (String key : keySet) { nvps.add(new BasicNameValuePair(key, params.get(key))); } try { httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8)); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return httpost; } /** * post方式提交json代码 * @throws Exception */ public static String postJson(String url,String json) throws Exception{ //创建默认的httpClient实例. CloseableHttpClient httpclient = null; //接收响应结果 CloseableHttpResponse response = null; String result = ""; //创建httppost httpclient = HttpClients.createDefault(); HttpPost httpPost = new HttpPost(url); httpPost.addHeader(HTTP.CONTENT_TYPE,"application/json"); //参数 StringEntity se = new StringEntity(json); se.setContentEncoding("UTF-8"); se.setContentType("application/json");//发送json需要设置contentType httpPost.setEntity(se); LOGGER.debug("http post url:{},json:{}",url,json); response = httpclient.execute(httpPost); LOGGER.debug("http post result:{}", response); //解析返结果 HttpEntity entity = response.getEntity(); if(entity != null){ result = EntityUtils.toString(entity, "UTF-8"); } httpclient.close(); response.close(); return result; } public static void main(String[] args) throws Exception { // HttpClient.get("http://localhost/clean/4a/welcome"); // Map<String,String> params = new HashMap<String,String>(); // params.put("empName", "1"); // params.put("empCode", "2"); // HttpClient.post("http://localhost/clean/4a/privilege/check", params); UserBo userBo = new UserBo(); userBo.setEmpCode("3"); userBo.setEmpName("zs"); userBo.setErpUid("4"); userBo.setMip("5"); String jsonStr = JSONObject.toJSONString(userBo); HttpClient.postJson("http://localhost/clean/4a/privilege/check", jsonStr); } }
org.apache.httpcomponents httpclient 发起HTTP JSON请求
标签:cli port ram 默认 idea key char slf4j factor
原文地址:http://www.cnblogs.com/yun965861480/p/6906207.html