httpclient.client.ClientFormLogin.java Source code

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Here is the source code for httpclient.client.ClientFormLogin.java

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/*
 * ====================================================================
 *
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

package httpclient.client;

import httpclient.sun0769.Constants;

import java.util.ArrayList;
import java.util.List;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.protocol.HTTP;

import util.Tools;

/**
 * A example that demonstrates how HttpClient APIs can be used to perform
 * form-based logon.
 */
public class ClientFormLogin {

    public static void main(String[] args) throws Exception {

        // prepare parameters
        HttpParams params = new BasicHttpParams();
        HttpProtocolParams.setUserAgent(params, Constants.BROWSER_TYPE);
        HttpProtocolParams.setUseExpectContinue(params, true);
        DefaultHttpClient httpclient = new DefaultHttpClient(params);

        String loginURL = "http://10.1.1.251/login.asp";
        HttpGet httpget = new HttpGet(loginURL);
        HttpResponse response = httpclient.execute(httpget);
        HttpEntity entity = response.getEntity();
        if (entity != null) {
            entity.consumeContent();
        }
        System.out.println("Initial set of cookies:");
        List<Cookie> cookies = httpclient.getCookieStore().getCookies();
        if (cookies.isEmpty()) {
            System.out.println("None");
        } else {
            for (int i = 0; i < cookies.size(); i++) {
                System.out.println("- " + cookies.get(i).toString());
            }
        }

        HttpPost httpost = new HttpPost(loginURL);
        List<NameValuePair> nvps = new ArrayList<NameValuePair>();
        nvps.add(new BasicNameValuePair("name", "fangdj"));
        nvps.add(new BasicNameValuePair("passwd", "1111"));

        httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));

        response = httpclient.execute(httpost);
        entity = response.getEntity();
        for (Header h : response.getAllHeaders()) {
            System.out.println(h);
        }
        System.out.println("Login form get: " + response.getStatusLine());
        if (entity != null) {
            entity.consumeContent();
        }

        System.out.println("Post logon cookies:");
        cookies = httpclient.getCookieStore().getCookies();
        if (cookies.isEmpty()) {
            System.out.println("None");
        } else {
            for (int i = 0; i < cookies.size(); i++) {
                System.out.println("- " + cookies.get(i).toString());
            }
        }

        String mainURL = "http://10.1.1.251/ONWork/Record_save.asp";

        HttpPost mainHttPost = new HttpPost(mainURL);
        List<NameValuePair> mainNvps = new ArrayList<NameValuePair>();
        mainNvps.add(new BasicNameValuePair("EMP_NO", "13028"));
        mainNvps.add(new BasicNameValuePair("pwd", "1111"));
        mainNvps.add(new BasicNameValuePair("cmd2", "Apply"));

        httpost.setEntity(new UrlEncodedFormEntity(mainNvps, HTTP.UTF_8));

        response = httpclient.execute(mainHttPost);
        System.out.println(Tools.InputStreamToString(response.getEntity().getContent()));
        // When HttpClient instance is no longer needed, 
        // shut down the connection manager to ensure
        // immediate deallocation of all system resources
        httpclient.getConnectionManager().shutdown();
    }
}