clientlogin.java

这是用JAVA的SOCKET类实现的HTTP CLIENT的代码。通过它可以让原来很头疼的事情现在轻松的解决

package org.apache.commons.httpclient.demo;

import java.rmi.Naming;
import java.util.Iterator;
import java.util.ArrayList;
import java.io.IOException;
import java.io.InputStream;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.GetMethod;

import org.htmlparser.Node;
import org.htmlparser.NodeFilter;
import org.htmlparser.Parser;
import org.htmlparser.Tag;
import org.htmlparser.filters.TagNameFilter;
import org.htmlparser.filters.StringFilter;
import org.htmlparser.tags.*;
import org.htmlparser.util.NodeList;
import org.htmlparser.util.ParserException;
import org.htmlparser.util.SimpleNodeIterator;

/**
* Created by IntelliJ IDEA.
* User: new
* Date: 2007-9-13
* Time: 14:05:19
* To change this template use File | Settings | File Templates.
*/
public class ClientLogin {
    public static void main(String[] args) {
        HttpClient httpClient = new HttpClient();
        //设置代理服务器地址和端口
        httpClient.getHostConfiguration().setProxy("90.0.12.21",808);

        GetMethod get_method = new GetMethod("http://172.20.250.54:7123/kuandai/login_in.jsp?yhm=runwaytest&yhmm=txxlkjfd");

        try {
            int statusCode = httpClient.executeMethod(get_method);
            if (statusCode != HttpStatus.SC_OK) {
                System.err.println("Method failed: " + get_method.getStatusLine());
            }

        } catch (Exception e) {
            e.printStackTrace(System.out);
        } finally {
            // Release the connection.
            get_method.releaseConnection();
        }


//        GetMethod get_method2 = new GetMethod("http://172.20.250.54:7123/kuandai/doAction.jsp?action=aRouterIpStatus&param0=10.16.16.1&area=1&count=1");
//        byte[] responseBody = null;
//        try {
//            // Provide custom retry handler is necessary
//            get_method2.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
//                    new DefaultHttpMethodRetryHandler(3, false));
//            int statusCode = httpClient.executeMethod(get_method2);
//
//            if (statusCode != HttpStatus.SC_OK) {
//                System.err.println("Method failed: " + get_method2.getStatusLine());
//            }
//
//            //这里用流来读页面
//            InputStream in = get_method2.getResponseBodyAsStream();
//            if (in != null) {
//                byte[] tmp = new byte[4096];
//                int bytesRead = 0;
//                ByteArrayOutputStream buffer = new ByteArrayOutputStream(1024);
//                while ((bytesRead = in.read(tmp)) != -1) {
//                    buffer.write(tmp, 0, bytesRead);
//                }
//                responseBody = buffer.toByteArray();
//            }
//            System.out.println(new String(responseBody));
//        } catch (IOException e) {
//            e.printStackTrace(System.out);
//        } finally {
//            get_method2.releaseConnection();
//        }
        GetMethod get_method2 = new GetMethod("http://172.20.250.54:7123/kuandai/queryrstgraph.jsp?hosts=00system00&items=UA&graph=graph&Avgvalue=1&DataDate=2007-10-31");
        byte[] responseBody = null;
        try {
            // Provide custom retry handler is necessary
            get_method2.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
                    new DefaultHttpMethodRetryHandler(3, false));
            int statusCode = httpClient.executeMethod(get_method2);

            if (statusCode != HttpStatus.SC_OK) {
                System.err.println("Method failed: " + get_method2.getStatusLine());
            }

            //这里用流来读页面
            InputStream in = get_method2.getResponseBodyAsStream();
            if (in != null) {
                byte[] tmp = new byte[4096];
                int bytesRead = 0;
                ByteArrayOutputStream buffer = new ByteArrayOutputStream(1024);
                while ((bytesRead = in.read(tmp)) != -1) {
                    buffer.write(tmp, 0, bytesRead);
                }
                responseBody = buffer.toByteArray();
            }
            System.out.println(new String(responseBody));
        } catch (IOException e) {
            e.printStackTrace(System.out);
        } finally {
            get_method2.releaseConnection();
        }
        try {
            Parser parser = Parser.createParser(new String(responseBody, "GBK"), "GBK");
//            String filterStr = "网关";
//            NodeFilter filter = new StringFilter(filterStr);
//            NodeList fonts = parser.extractAllNodesThatMatch(filter);
//            for (SimpleNodeIterator iter = fonts.elements(); iter.hasMoreNodes();) {
//                Node tag = iter.nextNode();
//                try {
//                    System.out.println("tag.getText() = " + tag.getText());
//                } catch (Exception e) {
//                    e.printStackTrace(System.out);
//                }
//            }

            String filterStr = "param";
            NodeFilter filter = new TagNameFilter(filterStr);
            NodeList tables = parser.extractAllNodesThatMatch(filter);
            for (SimpleNodeIterator iter = tables.elements(); iter.hasMoreNodes();) {
                Tag tag = (Tag) iter.nextNode();
                try {
//                    System.out.println("tag.getTagName() = " + tag.getTagName());
//                    System.out.println("tag.getAttribute(\"name\") = " + tag.getAttribute("name"));
//                    System.out.println("tag.getAttribute(\"value\") = " + tag.getAttribute("value"));
                    if (tag.getAttribute("name").equals("sampleValues_0")) {
                        String v = tag.getAttribute("value");
                        String value = null;
                        if (v.endsWith(",")) {
                            value = v.substring(0,v.length()-1);
                        } else {
                            value = v;
                        }
                        int index = value.lastIndexOf(",");
                        String total = value.substring(index+1,value.length());
                        System.out.println("total = " + total);
                    }
                } catch (Exception e) {
                    e.printStackTrace(System.out);
                }
            }
        } catch (Exception e) {
            e.printStackTrace(System.out);
        }
    }
}