我正在尝试使用ssl将文件上传到某个url。我使用以下代码来设置信任管理器 -
public static void trustAll () {
TrustManage[] trustEverythingTrustManager = new TrustManager[] {
new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] chain,
String authType) throws CertificateException {
// TODO Auto-generated method stub
}
public void checkServerTrusted(X509Certificate[] chain,
String authType) throws CertificateException {
// TODO Auto-generated method stub
}
public X509Certificate[] getAcceptedIssuers() {
// TODO Auto-generated method stub
return null;
}
}
};
SSLContext sc;
try {
sc = SSLContext.getInstance("TLS");
sc.init(null, trustEverythingTrustManager, new SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
} catch (Exception e) {
}
}
这个是用来设置主机名验证器的：
public static HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier() {
public boolean verify(String hostname, SSLSession session) {
return true;
}
};
然后我会像这样打开连接 -
URL url = new URL("some_url");
HttpURLConnection connection = null;
// check if this is https or just http
if (url.getProtocol().toLowerCase().equals("https")) {
trustAll();
HttpsURLConnection https = (HttpsURLConnection) url.openConnection();
https.setHostnameVerifier(DO_NOT_VERIFY);
connection = https;
} else {
connection = (HttpURLConnection) url.openConnection();
}
在我获得连接后，我使用它来上传数据。如果我使用http一切正常，但当我尝试https时，我会遇到以下异常 -
写入错误：系统调用期间的I/O错误，管道中断 java.io.IOException: 写入错误：系统调用期间的I/O错误，管道中断 at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.nativewrite(Native Method) at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.access$600(OpenSSLSocketImpl.java:55) at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl$SSLOutputStream.write(OpenSSLSocketImpl.java:565) at java.io.OutputStream.write(OutputStream.java:82) at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection$HttpOutputStream.write(HttpURLConnection.java:652) at java.io.DataOutputStream.write(DataOutputStream.java:101)
奇怪的是，我并不总是会遇到异常。当我尝试上传小文件（200K）时，一切正常或者很少崩溃，但当我尝试上传更大的文件（超过1MB）时，几乎每次都会出现异常。
有什么想法吗？