HttpUtil

来源：互联网发布：江西电信云计算基地编辑：程序博客网时间：2024/06/07 18:15

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStream;import java.io.OutputStreamWriter;import java.net.URL;import java.net.URLConnection;import java.util.Map;import org.apache.commons.httpclient.HttpClient;import org.apache.commons.httpclient.NameValuePair;import org.apache.commons.httpclient.methods.PostMethod;import org.apache.log4j.Logger;public class HttpUtil {  private static final Logger logger = Logger.getLogger(HttpUtil.class);  /**   * http post请求   * @param url地址   * @param postContentpost内容格式为param1=value¶m2=value2¶m3=value3   * @return   * @throws IOException   */  public static String httpPostRequest(URL url, String postContent) throws Exception{    OutputStream outputstream = null;    BufferedReader in = null;    try    {      URLConnection httpurlconnection = url.openConnection();      httpurlconnection.setConnectTimeout(10 * 1000);      httpurlconnection.setDoOutput(true);      httpurlconnection.setUseCaches(false);      OutputStreamWriter out = new OutputStreamWriter(httpurlconnection          .getOutputStream(), "UTF-8");      out.write(postContent);      out.flush();            StringBuffer result = new StringBuffer();      in = new BufferedReader(new InputStreamReader(httpurlconnection          .getInputStream(),"UTF-8"));      String line;      while ((line = in.readLine()) != null)      {        result.append(line);      }      return result.toString();    }    catch(Exception ex){      logger.error("post请求异常：" + ex.getMessage());      throw new Exception("post请求异常：" + ex.getMessage());    }    finally    {      if (outputstream != null)      {        try        {          outputstream.close();        }        catch (IOException e)        {          outputstream = null;        }      }      if (in != null)      {        try        {          in.close();        }        catch (IOException e)        {          in = null;        }      }    }  }    /**   * 通过httpClient进行post提交   * @param url提交url地址   * @param charset字符集   * @param keys参数名   * @param values参数值   * @return   * @throws Exception   */  public static String HttpClientPost(String url , String charset , String[] keys , String[] values) throws Exception{    HttpClient client = null;    PostMethod post = null;    String result = "";    int status = 200;    try {             client = new HttpClient();                               //PostMethod对象用于存放地址             //总账户的测试方法               post = new PostMethod(url);                        //NameValuePair数组对象用于传入参数               post.addRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=" + charset);//在头文件中设置转码               String key = "";               String value = "";               NameValuePair temp = null;               NameValuePair[] params = new NameValuePair[keys.length];               for (int i = 0; i < keys.length; i++) {               key = (String)keys[i];               value = (String)values[i];               temp = new NameValuePair(key , value);                  params[i] = temp;               temp = null;               }              post.setRequestBody(params);                //执行的状态              status = client.executeMethod(post);               logger.info("status = " + status);                             if(status == 200){              result = post.getResponseBodyAsString();              }                   } catch (Exception ex) {      // TODO: handle exception      throw new Exception("通过httpClient进行post提交异常：" + ex.getMessage() + " status = " + status);    }    finally{      post.releaseConnection();     }    return result;  }    /**   * 字符串处理,如果输入字符串为null则返回"",否则返回本字符串去前后空格。   * @param inputStr输入字符串   * @returnstring 输出字符串   */    public static String doString(String inputStr){    //如果为null返回""        if(inputStr == null || "".equals(inputStr) || "null".equals(inputStr)){    return "";    }        //否则返回本字符串把前后空格去掉    return inputStr.trim();    }    /**     * 对象处理，如果输入对象为null返回"",否则则返回本字符对象信息，去掉前后空格     * @param object     * @return     */    public static String doString(Object object){    //如果为null返回""        if(object == null || "null".equals(object) || "".equals(object)){    return "";    }        //否则返回本字符串把前后空格去掉    return object.toString().trim();    }    }

使用：

String returnXML = HttpUtil.httpPostRequest(new URL(sendURL), postContent);

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