Android通過Get,Post,HttpClient方式提交參數給服務器

package cn.itcast.net;

import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.xmlpull.v1.XmlPullParser;
import android.util.Xml;
import cn.itcast.utils.StreamTool;
public class HttpRequest {

public static boolean sendXML(String path, String xml)throws Exception{
    byte[] data = xml.getBytes();
    URL url = new URL(path);
    HttpURLConnection conn = (HttpURLConnection)url.openConnection();
    conn.setRequestMethod("POST");
    conn.setConnectTimeout(5 * 1000);
    conn.setDoOutput(true);//如果通過post提交數據，必須設置允許對外輸出數據
    conn.setRequestProperty("Content-Type", "text/xml; charset=UTF-8");
    conn.setRequestProperty("Content-Length", String.valueOf(data.length));
    OutputStream outStream = conn.getOutputStream();
    outStream.write(data);
    outStream.flush();
    outStream.close();
    if(conn.getResponseCode()==200){
        return true;
    }
    return false;
}

public static boolean sendGetRequest(String path, Map<String, String> params, String enc) throws Exception{
    StringBuilder sb = new StringBuilder(path);
    sb.append('?');
    // ?method=save&title=435435435&timelength=89&
    for(Map.Entry<String, String> entry : params.entrySet()){
        sb.append(entry.getKey()).append('=')
            .append(URLEncoder.encode(entry.getValue(), enc)).append('&');
    }
    sb.deleteCharAt(sb.length()-1);

    URL url = new URL(sb.toString());
    HttpURLConnection conn = (HttpURLConnection)url.openConnection();
    conn.setRequestMethod("GET");
    conn.setConnectTimeout(5 * 1000);
    if(conn.getResponseCode()==200){
        return true;
    }
    return false;
}

public static boolean sendPostRequest(String path, Map<String, String> params, String enc) throws Exception{
    // title=dsfdsf&timelength=23&method=save
    StringBuilder sb = new StringBuilder();
    if(params!=null && !params.isEmpty()){
        for(Map.Entry<String, String> entry : params.entrySet()){
            sb.append(entry.getKey()).append('=')
                .append(URLEncoder.encode(entry.getValue(), enc)).append('&');
        }
        sb.deleteCharAt(sb.length()-1);
    }
    byte[] entitydata = sb.toString().getBytes();//得到實體的二進制數據
    URL url = new URL(path);
    HttpURLConnection conn = (HttpURLConnection)url.openConnection();
    conn.setRequestMethod("POST");
    conn.setConnectTimeout(5 * 1000);
    conn.setDoOutput(true);//如果通過post提交數據，必須設置允許對外輸出數據
    //Content-Type: application/x-www-form-urlencoded
    //Content-Length: 38
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    conn.setRequestProperty("Content-Length", String.valueOf(entitydata.length));
    OutputStream outStream = conn.getOutputStream();
    outStream.write(entitydata);
    outStream.flush();
    outStream.close();
    if(conn.getResponseCode()==200){
        return true;
    }
    return false;
}

//SSL HTTPS Cookie
public static boolean sendRequestFromHttpClient(String path, Map<String, String> params, String enc) throws Exception{
    List<NameValuePair> paramPairs = new ArrayList<NameValuePair>();
    if(params!=null && !params.isEmpty()){
        for(Map.Entry<String, String> entry : params.entrySet()){
            paramPairs.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
        }
    }
    UrlEncodedFormEntity entitydata = new UrlEncodedFormEntity(paramPairs, enc);//得到經過編碼過后的實體數據
    HttpPost post = new HttpPost(path); //form
    post.setEntity(entitydata);
    DefaultHttpClient client = new DefaultHttpClient(); //瀏覽器
    HttpResponse response = client.execute(post);//執行請求
    if(response.getStatusLine().getStatusCode()==200){
        return true;
    }
    return false;
}

}</pre>

package cn.itcast.uploaddata;

import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import cn.itcast.net.HttpRequest;
import android.test.AndroidTestCase;
import android.util.Log;
public class HttpRequestTest extends AndroidTestCase {
    private static final String TAG = "HttpRequestTest";

public void testSendXMLRequest() throws Throwable{
    String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><persons><person id=\"23\"><name>liming</name><age>30</age></person></persons>";
    HttpRequest.sendXML("http://192.168.1.100:8080/videoweb/video/manage.do?method=getXML", xml);
}

public void testSendGetRequest() throws Throwable{
    //?method=save&title=xxxx&timelength=90
    Map<String, String> params = new HashMap<String, String>();
    params.put("method", "save");
    params.put("title", "liming");
    params.put("timelength", "80");

    HttpRequest.sendGetRequest("http://192.168.1.100:8080/videoweb/video/manage.do", params, "UTF-8");
}

public void testSendPostRequest() throws Throwable{
    Map<String, String> params = new HashMap<String, String>();
    params.put("method", "save");
    params.put("title", "中國");
    params.put("timelength", "80");

    HttpRequest.sendPostRequest("http://192.168.1.100:8080/videoweb/video/manage.do", params, "UTF-8");
}

public void testSendRequestFromHttpClient() throws Throwable{
    Map<String, String> params = new HashMap<String, String>();
    params.put("method", "save");
    params.put("title", "傳智播客");
    params.put("timelength", "80");

    boolean result = HttpRequest.sendRequestFromHttpClient("http://192.168.1.100:8080/videoweb/video/manage.do", params, "UTF-8");
    Log.i("HttRequestTest", ""+ result);
}

}</pre> 
服務器端代碼：

package cn.itcast.action;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;
import cn.itcast.formbean.VideoForm;
import cn.itcast.utils.StreamTool;
public class VideoManageAction extends DispatchAction {

public ActionForward save(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    VideoForm formbean = (VideoForm)form;
    if("GET".equals(request.getMethod())){
        byte[] data = request.getParameter("title").getBytes("ISO-8859-1");
        String title = new String(data, "UTF-8");
        System.out.println("title:"+ title);
        System.out.println("timelength:"+ formbean.getTimelength());
    }else{
        System.out.println("title:"+ formbean.getTitle());
        System.out.println("timelength:"+ formbean.getTimelength());
    }
    //下面完成視頻文件的保存
    if(formbean.getVideo()!=null && formbean.getVideo().getFileSize()>0){
        String realpath = request.getSession().getServletContext().getRealPath("/video");
        System.out.println(realpath);
        File dir = new File(realpath);
        if(!dir.exists()) dir.mkdirs();
        File videoFile = new File(dir, formbean.getVideo().getFileName());
        FileOutputStream outStream = new FileOutputStream(videoFile);
        outStream.write(formbean.getVideo().getFileData());
        outStream.close();
    }
    return mapping.findForward("result");
}

public ActionForward getXML(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    InputStream inStream = request.getInputStream();
    byte[] data = StreamTool.readInputStream(inStream);
    String xml = new String(data, "UTF-8");
    System.out.println(xml);
    return mapping.findForward("result");
}

}</pre>