android中用get和post方式向服務(wù)器提交請(qǐng)求瘋狂之橋新浪博客
http://blog.sina.com.cn/s/blog_a46817ff01017yxt.html
Android提交數(shù)據(jù)到服務(wù)器的兩種方式四種方法 - 從不曾離開(kāi)的只有自由和夢(mèng)想！ - ITeye技術(shù)網(wǎng)站
http://keeponmoving.iteye.com/blog/1528472
android端向服務(wù)器提交請(qǐng)求的幾種方式 - Android移動(dòng)開(kāi)發(fā)技術(shù)文章_手機(jī)開(kāi)發(fā) - 紅黑聯(lián)盟
http://www.2cto.com/kf/201309/242510.html

// android中向服務(wù)器提交請(qǐng)求的兩種方式和四種方法

private String addr = "http://192.168.2.101:80/serlet/loginServlet";

/* 1. 在android中用get方式向服務(wù)器提交請(qǐng)求 */

public boolean get(String username, String password) throws Exception {
username = URLEncoder.encode(username);
password = URLEncoder.encode(password);
String params = "Username = " + username + "&password = " + password;
//將參數(shù)拼接在URl地址后面
URL url = new URL(address + "?" + params);
//通過(guò)url地址打開(kāi)連接
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
//設(shè)置超時(shí)時(shí)間
conn.setConnectTimeout(3000);
//設(shè)置請(qǐng)求方式
conn.setRequestMethod("GET");
return conn.getResponseCode() == 200;
}


/* 2. HttpGet方式向服務(wù)器提交請(qǐng)求 --HttpClient */

//獲得要傳遞的數(shù)據(jù)
String username = et1.getText().toString();
String password = et2.getText().toString();

// 創(chuàng)建HttpGet對(duì)象
HttpGet request = new HttpGet(url +"name="+username+"&password="+password);
// 使用execute方法發(fā)送HTTP GET請(qǐng)求侍郭，并返回HttpResponse對(duì)象
// DefaultHttpClient為Http客戶端管理類珊佣，負(fù)責(zé)發(fā)送請(qǐng)
HttpResponse response = httpClient.execute(request);
// 判斷請(qǐng)求響應(yīng)狀態(tài)碼悔详，狀態(tài)碼為200表示服務(wù)端成功響應(yīng)了客戶端的請(qǐng)求
if (response.getStatusLine().getStatusCode() == 200) {
     // 使用getEntity方法獲得返回結(jié)果
     String data = EntityUtils.toString(response.getEntity(),"gbk");
     //獲得Message對(duì)象
     Message msg = handler.obtainMessage(1);
    //創(chuàng)建Bundle對(duì)象
     Bundle bundle = new Bundle();
     //用mes傳遞數(shù)據(jù)
     msg.setData(bundle);
    //開(kāi)啟Message對(duì)象
     msg.sendToTarget();
}

/* 3. post 方式向服務(wù)器提交請(qǐng)求 */
public boolean post(String username, String password)     throws Exception {
username = URLEncoder.encode(username); // 中文數(shù)據(jù)需要經(jīng)過(guò)URL編碼
password = URLEncoder.encode(password);
String params = "username=" + username + "&password=" + password;
byte[] data = params.getBytes();

URL url = new URL(address);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(3000);
//這是請(qǐng)求方式為POST
conn.setRequestMethod("POST");
//設(shè)置post請(qǐng)求必要的請(qǐng)求頭
// 請(qǐng)求頭, 必須設(shè)置
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); 
// 注意是字節(jié)長(zhǎng)度, 不是字符長(zhǎng)度
conn.setRequestProperty("Content-Length", data.length + ""); 

conn.setDoOutput(true); // 準(zhǔn)備寫(xiě)出
conn.getOutputStream().write(data); // 寫(xiě)出數(shù)據(jù)

return conn.getResponseCode() == 200;
}


/* 4. HttpPost方式向服務(wù)器提交請(qǐng)求 --HttpClient */

把來(lái)傳遞的數(shù)據(jù)封裝到user對(duì)象中

User user = new User();

user.setUserName(et1.getText().toString());

user.setUserPass(et2.getText().toString());

//創(chuàng)建Post對(duì)象
HttpPost request = new HttpPost("http://10.0.2.2:8080/system/Servlet");

// 將需要傳遞的參數(shù)封裝到List<NameValuePair>類型的對(duì)象中
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("username", user.getUserName()));
params.add(new BasicNameValuePair("password", user.getUserPass()));

// 將封裝參數(shù)的對(duì)象存入request中，并設(shè)置編碼方式
request.setEntity(new UrlEncodedFormEntity(params,
  HTTP.UTF_8));

// DefaultHttpClient為Http客戶端管理類瘦赫，負(fù)責(zé)發(fā)送請(qǐng)求和接受響應(yīng)
HttpResponse response = defaultHttpClient.execute(request);

// 判斷請(qǐng)求響應(yīng)狀態(tài)碼丽啡，狀態(tài)碼為200表示服務(wù)端成功響應(yīng)了客戶端的請(qǐng)求
if (response.getStatusLine().getStatusCode() == 200) {
     // 使用getEntity方法獲得返回結(jié)果
     String data = EntityUtils.toString(response.getEntity(),"gdk");
     //創(chuàng)建bundle對(duì)象
     Bundle bundle = new Bundle();
     //用bundle對(duì)象來(lái)封裝data數(shù)據(jù)
     bundle.putString("data", data);
     //創(chuàng)建Message對(duì)象
     Message mes = handler.obtainMessage(1);
     //存儲(chǔ)bundle數(shù)據(jù)
     mes.setData(bundle);

     mes.sendToTarget();
}

/**
 * @author Dylan
 * 本類封裝了Android中向web服務(wù)器提交數(shù)據(jù)的兩種方式四種方法
 */
public class SubmitDataByHttpClientAndOrdinaryWay {

/**
 * 使用get請(qǐng)求以普通方式提交數(shù)據(jù)
 * @param map 傳遞進(jìn)來(lái)的數(shù)據(jù)辱匿，以map的形式進(jìn)行了封裝
 * @param path 要求服務(wù)器servlet的地址
 * @return 返回的boolean類型的參數(shù)
 * @throws Exception
 */
public Boolean submitDataByDoGet(Map<String, String> map, String path) throws Exception {
    // 拼湊出請(qǐng)求地址
    StringBuilder sb = new StringBuilder(path);
    sb.append("?");
    for (Map.Entry<String, String> entry : map.entrySet()) {
        sb.append(entry.getKey()).append("=").append(entry.getValue());
        sb.append("&");
    }
    sb.deleteCharAt(sb.length() - 1);
    String str = sb.toString();
    System.out.println(str);
    URL Url = new URL(str);
    HttpURLConnection HttpConn = (HttpURLConnection) Url.openConnection();
    HttpConn.setRequestMethod("GET");
    HttpConn.setReadTimeout(5000);
    // GET方式的請(qǐng)求不用設(shè)置什么DoOutPut()之類的嗎刃永？
    if (HttpConn.getResponseCode() == HttpURLConnection.HTTP_OK) {
        return true;
    }
    return false;
}

/**
 * 普通方式的DoPost請(qǐng)求提交數(shù)據(jù)
 * @param map 傳遞進(jìn)來(lái)的數(shù)據(jù)，以map的形式進(jìn)行了封裝
 * @param path 要求服務(wù)器servlet的地址
 * @return 返回的boolean類型的參數(shù)
 * @throws Exception
 */
public Boolean submitDataByDoPost(Map<String, String> map, String path) throws Exception {
    // 注意Post地址中是不帶參數(shù)的羊精，所以newURL的時(shí)候要注意不能加上后面的參數(shù)
    URL Url = new URL(path);
    // Post方式提交的時(shí)候參數(shù)和URL是分開(kāi)提交的斯够，參數(shù)形式是這樣子的：name=y&age=6
    StringBuilder sb = new StringBuilder();
    // sb.append("?");
    for (Map.Entry<String, String> entry : map.entrySet()) {
        sb.append(entry.getKey()).append("=").append(entry.getValue());
        sb.append("&");
    }
    sb.deleteCharAt(sb.length() - 1);
    String str = sb.toString();

    HttpURLConnection HttpConn = (HttpURLConnection) Url.openConnection();
    HttpConn.setRequestMethod("POST");
    HttpConn.setReadTimeout(5000);
    HttpConn.setDoOutput(true);
    HttpConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    HttpConn.setRequestProperty("Content-Length", String.valueOf(str.getBytes().length));
    OutputStream os = HttpConn.getOutputStream();
    os.write(str.getBytes());
    if (HttpConn.getResponseCode() == HttpURLConnection.HTTP_OK) {
        return true;
    }
    return false;
}

/**
 * 以HttpClient的DoGet方式向服務(wù)器發(fā)送請(qǐng)數(shù)據(jù)
 * @param map 傳遞進(jìn)來(lái)的數(shù)據(jù)，以map的形式進(jìn)行了封裝
 * @param path 要求服務(wù)器servlet的地址
 * @return 返回的boolean類型的參數(shù)
 * @throws Exception
 */
public Boolean submitDataByHttpClientDoGet(Map<String, String> map, String path) throws Exception {
    HttpClient hc = new DefaultHttpClient();
    // 請(qǐng)求路徑
    StringBuilder sb = new StringBuilder(path);
    sb.append("?");
    for (Map.Entry<String, String> entry : map.entrySet()) {
        sb.append(entry.getKey()).append("=").append(entry.getValue());
        sb.append("&");
    }
    sb.deleteCharAt(sb.length() - 1);
    String str = sb.toString();
    System.out.println(str);
    HttpGet request = new HttpGet(sb.toString());

    HttpResponse response = hc.execute(request);
    if (response.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {
        return true;
    }
    return false;
}

/**
 * 以HttpClient的DoPost方式提交數(shù)據(jù)到服務(wù)器
 * @param map 傳遞進(jìn)來(lái)的數(shù)據(jù)喧锦，以map的形式進(jìn)行了封裝
 * @param path 要求服務(wù)器servlet的地址
 * @return 返回的boolean類型的參數(shù)
 * @throws Exception
 */
public Boolean submintDataByHttpClientDoPost(Map<String, String> map, String path) throws Exception {
    // 1. 獲得一個(gè)相當(dāng)于瀏覽器對(duì)象HttpClient读规，使用這個(gè)接口的實(shí)現(xiàn)類來(lái)創(chuàng)建對(duì)象，DefaultHttpClient
    HttpClient hc = new DefaultHttpClient();
    // DoPost方式請(qǐng)求的時(shí)候設(shè)置請(qǐng)求燃少，關(guān)鍵是路徑
    HttpPost request = new HttpPost(path);
    // 2. 為請(qǐng)求設(shè)置請(qǐng)求參數(shù)束亏，也即是將要上傳到web服務(wù)器上的參數(shù)
    List<NameValuePair> parameters = new ArrayList<NameValuePair>();
    for (Map.Entry<String, String> entry : map.entrySet()) {
        NameValuePair nameValuePairs = new BasicNameValuePair(entry.getKey(), entry.getValue());
        parameters.add(nameValuePairs);
    }
    // 請(qǐng)求實(shí)體HttpEntity也是一個(gè)接口，我們用它的實(shí)現(xiàn)類UrlEncodedFormEntity來(lái)創(chuàng)建對(duì)象阵具，注意后面一個(gè)String類型的參數(shù)是用來(lái)指定編碼的
    HttpEntity entity = new UrlEncodedFormEntity(parameters, "UTF-8");
    request.setEntity(entity);
    // 3. 執(zhí)行請(qǐng)求
    HttpResponse response = hc.execute(request);
    // 4. 通過(guò)返回碼來(lái)判斷請(qǐng)求成功與否
    if (response.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {
        return true;
    }
    return false;
}
}