1 首先在POM文件中添加相应的依赖
<dependency>
<groupId>com.jcraft</groupId>
<artifactId>jsch</artifactId>
<version>0.1.54</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.5</version>
</dependency>
</dependencies>
2 编写代码测试
package com.dbutils.http; import java.net.URL; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import org.apache.http.Header; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; public class HttpClientUtils { public static String doPost(URL url, Map<String,String> params, String charset){ //新建HttpClient HttpClient client = HttpClients.createDefault(); //创建HttpPost if(null == url || "".equals(url.toString())){ return "url is not allow empty!"; } HttpPost post = new HttpPost(url.toString()); //添加参数 List<NameValuePair> paraList = new ArrayList<NameValuePair>(); Set<Map.Entry<String,String>> mapSet = params.entrySet(); Iterator<Map.Entry<String,String>> iterator = mapSet.iterator(); while(iterator.hasNext()){ Map.Entry<String,String> elem = iterator.next(); paraList.add(new BasicNameValuePair(elem.getKey(),elem.getValue())); } //发起请求 try{ UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paraList,charset); post.setEntity(entity); //连接并获得返回 HttpResponse response = client.execute(post); //处理返回数据 if(null != response){ Header[] headers = response.getAllHeaders(); for(Header header : headers){ System.out.println(header.getName() + ":" + header.getValue()); } HttpEntity responseEntity = response.getEntity(); if(null != responseEntity){ //获得Http返回数据,并返回函数 return EntityUtils.toString(responseEntity,charset); } } }catch(Exception e){ return "error" + e.getMessage(); } return ""; } public static void main(String[] args){ try{ URL url = new URL("http://localhost:8080"); Map<String,String> paraMap = new HashMap<String, String>(); paraMap.put("para1","TK20180529001"); String value = HttpClientUtils.doPost(url,paraMap,"UTF-8"); System.out.print(value); }catch(Exception e){} } }