httpclient

用到的jar：commons-codec-1.6.jar、commons-httpclient-3.0.jar、commons-logging-1.1.3.jar

 

package com.httpclient;

import java.util.Iterator; import java.util.Map; import java.util.Set; import java.util.TreeMap;

import org.apache.commons.httpclient.HttpClient; import org.apache.commons.httpclient.NameValuePair; import org.apache.commons.httpclient.methods.PostMethod; import org.apache.commons.httpclient.params.HttpMethodParams;

public class TT {     public static void main(String[] args) {         TT dp = new TT();         System.out.println(dp.getPack("1039", "1003"));     }     public String getPack(String grade,String subject) {         TreeMap<String,String> map=new TreeMap<String,String>();         map.put("commandid", "guestpacklist");         map.put("grade", grade);         map.put("subject", subject);         NameValuePair[] data = new NameValuePair[addSigned(map).keySet().size()];          Iterator it = map.entrySet().iterator();          int i = 0;          while (it.hasNext()) {              Map.Entry entry = (Map.Entry) it.next();              Object key = entry.getKey();              Object value = entry.getValue();              data[i] = new NameValuePair(key.toString(), value.toString());              i++;          }         HttpClient client = new HttpClient();         PostMethod post = new PostMethod("http://api.xxx.hk/api/android/");        post.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,"UTF-8");         post.setRequestBody(data);         try {             client.executeMethod(post);           return post.getResponseBodyAsString();                     } catch (Exception e) {             e.printStackTrace();         } finally {            post.releaseConnection();         }         return "nothing response!maybe can`t connect to the host!";     }

    public static TreeMap<String, String> addSigned(             TreeMap<String, String> parmas) {         // 前面参数(TreeMap)，组合后再拼上key，最后一起加密为signed参数。最后返回之前的参数和signed

       String signed = "";         Set<String> key = parmas.keySet();         for (Iterator it = key.iterator(); it.hasNext();) {             String s = (String) it.next();             // P.systemOut(s + " -> ");             // P.systemOut(parmas.get(s));             signed += s + parmas.get(s);         }         signed += "abcde123abcde123abcde123abcde123a";         parmas.put("signed", JT_MD5.encodeString(signed.getBytes()));         return parmas;     } }

转载于:https://www.cnblogs.com/stay-sober/p/4169698.html