Android通过https协议与服务器端进行通信
2011-06-12 10:28
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Https与Http类似,只不过Https一般是通过post请求服务器,但是Https与http不同的是Https与服务器会话是处于连接状态。http则发送请求后连接就会断开。
发送post请求代码:
String query = r4 + "&pass=" + r3; //请求参数
byte[] entitydata = query.getBytes();//得到实体数据
HttpsURLConnection urlCon = (new URL(ticketurl)).openConnection();
urlCon.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
urlCon.setRequestProperty("Content-Length", String.valueOf(entitydata.length));
((HttpsURLConnection) urlCon).setRequestMethod("POST");
urlCon.setDoOutput(true);
urlCon.setDoInput(true);
urlCon.connect();
//把封装好的实体数据发送到输出流
OutputStream outStream = urlCon.getOutputStream();
outStream.write(entitydata);
outStream.flush();
outStream.close();
//服务器返回输入流并读写
BufferedReader in = new BufferedReader(new InputStreamReader(urlCon.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
return line;
}
in.close();
另外使用HttpsURLConnection时需要实现HostnameVerifier 和 X509TrustManager,这两个实现是必须的,要不会报安全验证异常。然后初始化X509TrustManager中的SSLContext,为javax.net.ssl.HttpsURLConnection设置默认的SocketFactory和HostnameVerifier。代码如下:
private myX509TrustManager xtm = new myX509TrustManager();
private myHostnameVerifier hnv = new myHostnameVerifier();
public HttpsURLConnectionTest() {
//初始化X509TrustManager中的SSLContext
SSLContext sslContext = null;
try {
sslContext = SSLContext.getInstance("TLS");
X509TrustManager[] xtmArray = new X509TrustManager[] { xtm };
sslContext.init(null, xtmArray, new java.security.SecureRandom());
} catch (GeneralSecurityException gse) {
}
//为javax.net.ssl.HttpsURLConnection设置默认的SocketFactory和HostnameVerifier
if (sslContext != null) {
HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
}
HttpsURLConnection.setDefaultHostnameVerifier(hnv);
这样就不会报错了。
发送post请求代码:
String query = r4 + "&pass=" + r3; //请求参数
byte[] entitydata = query.getBytes();//得到实体数据
HttpsURLConnection urlCon = (new URL(ticketurl)).openConnection();
urlCon.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
urlCon.setRequestProperty("Content-Length", String.valueOf(entitydata.length));
((HttpsURLConnection) urlCon).setRequestMethod("POST");
urlCon.setDoOutput(true);
urlCon.setDoInput(true);
urlCon.connect();
//把封装好的实体数据发送到输出流
OutputStream outStream = urlCon.getOutputStream();
outStream.write(entitydata);
outStream.flush();
outStream.close();
//服务器返回输入流并读写
BufferedReader in = new BufferedReader(new InputStreamReader(urlCon.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
return line;
}
in.close();
另外使用HttpsURLConnection时需要实现HostnameVerifier 和 X509TrustManager,这两个实现是必须的,要不会报安全验证异常。然后初始化X509TrustManager中的SSLContext,为javax.net.ssl.HttpsURLConnection设置默认的SocketFactory和HostnameVerifier。代码如下:
private myX509TrustManager xtm = new myX509TrustManager();
private myHostnameVerifier hnv = new myHostnameVerifier();
public HttpsURLConnectionTest() {
//初始化X509TrustManager中的SSLContext
SSLContext sslContext = null;
try {
sslContext = SSLContext.getInstance("TLS");
X509TrustManager[] xtmArray = new X509TrustManager[] { xtm };
sslContext.init(null, xtmArray, new java.security.SecureRandom());
} catch (GeneralSecurityException gse) {
}
//为javax.net.ssl.HttpsURLConnection设置默认的SocketFactory和HostnameVerifier
if (sslContext != null) {
HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
}
HttpsURLConnection.setDefaultHostnameVerifier(hnv);
这样就不会报错了。
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