使用HttpClient實現請求轉寄功能

標籤：get   post   httpclient   請求轉寄   

由於移動端要顯示業務系統的資料，但是業務系統眾多，如果直接和業務系統互動，會緊耦合，雜亂無章，不好管理，特編寫請求轉寄組件，實現統一中轉。

本文基於HttpClient實現了GET和POST兩種方式：

GET請求：

/**
  * 根據GET方式請求擷取請求內容
  * @param url
  * @return
  */
 private String getContentFromUrlByGet(String url) {
  String content = "";
  try {
   HttpClient client = new HttpClient();
   GetMethod getMethod = new GetMethod(url);
   client.executeMethod(getMethod);
   InputStream stream = getMethod.getResponseBodyAsStream(); 
   int length;
   byte[] buffer = new byte[1024 * 4];
   StringBuffer stringBuffer = new StringBuffer();
   while ((length = stream.read(buffer)) != -1) {
    stringBuffer.append(new String(buffer, 0, length, "utf-8"));
   }
   content = new String(stringBuffer);
   getMethod.releaseConnection();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  return content;

 }

POST請求：

/**
  * 根據POST請求擷取請求內容
  * @param url
  * @return
  */ 
 private String getContentFromUrlByPost(String url) {
  String content = "";
  try {
   HttpClient client = new HttpClient();
   PostMethod postMethod = new PostMethod(url);
   // 增加變數
   postMethod.addParameter("name", "name");
   postMethod.addParameter("pwd", "pwd");
   client.executeMethod(postMethod);
   InputStream stream = postMethod.getResponseBodyAsStream(); 
   int length;
   byte[] buffer = new byte[1024 * 4];
   StringBuffer stringBuffer = new StringBuffer();
   while ((length = stream.read(buffer)) != -1) {
    stringBuffer.append(new String(buffer, 0, length, "utf-8"));
   }
   content = new String(stringBuffer);
   postMethod.releaseConnection();
  } catch (Exception e) {
     e.printStackTrace();
  }
  return content;

 }

使用HttpClient實現請求轉寄功能