java实现https免证书认证
解决方法：
1.下载两个包，httpclient-4.2.jar和httpcore-4.2.jar，复制以下代码就可使用。
2.调用类代码：
String httpOrgCreateTest = "https://url";
Map<String,Object> createMap = new HashMap<String,Object>();
createMap.put("name","8888888");
createMap.put("num","11111");
createMap.put("array",list.toArray());
String message = JSON.toJSONString(createMap);
String result = HttpRequest.sendPost(httpOrgCreateTest, message);
3.HttpRequest类
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
public class HttpRequest {
public static String sendPost(String url, String param) {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
// 创建SSLContext对象，并使用我们指定的信任管理器初始化
TrustManager[] tm = { new MyX509TrustManager() };
SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, tm, new java.security.SecureRandom());
// 从上述SSLContext对象中得到SSLSocketFactory对象
SSLSocketFactory ssf = sslContext.getSocketFactory();
// 打开和URL之间的连接
//URL realUrl = new URL(url);
URL realUrl= new URL(null, url, new sun.net.www.protocol.https.Handler());
HttpsURLConnection conn = (HttpsURLConnection) realUrl.openConnection();
conn.setSSLSocketFactory(ssf);
// 设置通用的请求属性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("content-Type", "application/json");
conn.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 发送POST请求必须设置如下两行
conn.setDoOutput(true);
conn.setDoInput(true);
// 获取URLConnection对象对应的输出流
out = new PrintWriter(conn.getOutputStream());
// 发送请求参数
out.print(param);
// flush输出流的缓冲
out.flush();
// 定义BufferedReader输入流来读取URL的响应
in = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送 POST 请求出现异常！"+e);
e.printStackTrace();
}
//使用finally块来关闭输出流、输入流
finally{
try{
if(out!=null){
out.close();
}
if(in!=null){
in.close();
}
}
catch(IOException ex){
ex.printStackTrace();
}
}
return result;
}
}
4.MyX509TrustManager类
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.X509TrustManager;
public class MyX509TrustManager implements X509TrustManager{
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType) throws
CertificateException {
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType) throws
CertificateException {
}
@Override
public X509Certificate[] getAcceptedIssuers() {
return null;
}
}