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java HttpClient
/*
 * Created on 2007-1-20
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
  */
package  test;

 import  org.apache.commons.httpclient.HttpClient;
 import  org.apache.commons.httpclient.HttpMethod;
 import  org.apache.commons.httpclient.methods.GetMethod;
 import  org.apache.commons.httpclient.methods.PostMethod;


 /**
 *  @author  Administrator
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
  */
public   class  URLUtil {
    
     private   static  String url  =   "" ;
     private   static   final  String loginUrl  =   "" ;
     private   static  HttpClient client  =   null ;
     private   static  PostMethod method  =   null ;
    
     public   static   void  setUrl(String url1) {
        url  =  url1;
    }
    
     public   static   void  init() {
         if (client  ==   null ) {
             try   {
                client  =   new  HttpClient();
                method  =   new  PostMethod(loginUrl);
                client.executeMethod(method);
            }   catch  (Exception e)  {
                System.out.println( " ----系统初始化失败!---- " );
                e.printStackTrace();
            }
        }
    }
    
     public   static  String getHtml() {
        String contentStr  =   "" ;
        init();
         try {
            HttpMethod postMethod  =   new  GetMethod(url);
            client.executeMethod(postMethod);
            contentStr  =  postMethod.getResponseBodyAsString();
            postMethod.releaseConnection();
        } catch (Exception e) {
            release();
            getHtml();
        }
         return  contentStr;
    }
    
     public   static   void  release() {
         if (method  !=   null )method.releaseConnection();
         if (client  !=   null )client  =   null ;
    }
    
     public   static   void  main(String[] args) {
        URLUtil.setUrl( "" );
        System.out.println(getHtml());
    }
}
posted on 2008-10-08 13:50 crazy 阅读(629) 评论(0)  编辑  收藏 所属分类: java

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