/**

* @title HttpUtils

* @description post请求封装

* @author maohuidong

* @date 2017-12-18

*/

public static class HttpUtils {

/**

* 定义编码格式 UTF-8

*/

public static final String URL_PARAM_DECODECHARSET_UTF8 = "UTF-8";

private static final String EMPTY = "";

private static MultiThreadedHttpConnectionManager connectionManager = null;

private static int connectionTimeOut = 25000;

private static int socketTimeOut = 25000;

private static int maxConnectionPerHost = 20;

private static int maxTotalConnections = 20;

private static HttpClient client;

static{

connectionManager = new MultiThreadedHttpConnectionManager();

connectionManager.getParams().setConnectionTimeout(connectionTimeOut);

connectionManager.getParams().setSoTimeout(socketTimeOut);

connectionManager.getParams().setDefaultMaxConnectionsPerHost(maxConnectionPerHost);

connectionManager.getParams().setMaxTotalConnections(maxTotalConnections);

client = new HttpClient(connectionManager);

}

/**

* @function URLPost

* @param

* @description Post请求

* @return 请求后的结果

* @author maohuidong

* @date 2017-12-18

*/

public static String URLPost(String url, Map<String, String> params, String enc) throws UnsupportedEncodingException{

String response = EMPTY;

PostMethod postMethod = null;

try {

postMethod = new PostMethod(url);

postMethod.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=" + enc);

//将表单的值放入postMethod中

Set<String> keySet = params.keySet();

for(String key : keySet){

String value = params.get(key);

postMethod.addParameter(key, value);

}

//执行postMethod

int statusCode = client.executeMethod(postMethod);

if(statusCode == HttpStatus.SC_OK) {

response = postMethod.getResponseBodyAsString();

System.out.println(postMethod.getResponseCharSet());

}

}catch(HttpException e){

e.printStackTrace();

}catch(IOException e){

e.printStackTrace();

}finally{

if(postMethod != null){

postMethod.releaseConnection();

postMethod = null;

}

}

return response;

}

}

 

Test：

Map<String, String> map = new HashMap<String, String>();

map.put("token", token);

map.put("type", type);

String result = HttpUtils.URLPost("http://localhost:8080/web_user_xxhzx/check_findUserInfo.action", map, "UTF-8");

 

notice：

如果返回乱码，需要转码：

result = new  String(result.getBytes("ISO-8859-1"),"UTF-8");

返回的编码可以通过postMethod.getResponseCharSet()获取到