Use restful to request HTTPS identity does not pass, unable to find valid certification path to requested target, using Java to generate signing certificate

authentication failed with spring's restoperations (top-level Class), Resttemplate send restful request HTTPS (SSL)Because we are requesting the HTTPS format, the server side is required to have your signed certificate
The first workaround, using Installcert.java file generation

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* * Import java.io.*;

Import Java.net.URL;
Import java.security.*;

Import java.security.cert.*;

Import javax.net.ssl.*;
    public class Installcert {public static void main (string[] args) throws Exception {String host;
    int port;
    Char[] Passphrase; if ((args.length = 1) | | (Args.length = 2))
        {string[] c = Args[0].split (":");
        host = C[0]; Port = (C.length = =1)?
        443:integer.parseint (c[1]); String p = (args.length = 1)?
        "Changeit": args[1];
    Passphrase = P.tochararray ();
        else {System.out.println ("Usage:java installcert  
 Save as Installcert.java, compile Installcert, run Java installcert host:port example Java installcert www.baidu.com default will go from 443 ports under the certificate, If we do not succeed, we need to develop our own Java Installcert domain name: The port appears enter certificate to add to trusted KeyStore or ' Q ' to quit: [1] Input 1 generates a Jssecacerts This is what you call a certificate, you need to note that several parameters will print out subject and issuer and added certificate to KeyStore ' Jssecacerts ' using alias '  alias (name)  ' most important second resolution 
 Keytool-genkeypair-alias ' server '-keyalg ' RSA '-keystore ' jssecacerts.keystore ' 
 He needs you to fill out A series of Things 
 Features: 
 Create a certificate that is alias server, which is stored in a keystore named Test.keystore and created if the Jssecacerts.keystore KeyStore does not exist. 
 Parameter Description: 
 Genkeypair: Generates a pair of asymmetric keys;-alias: Specifies the alias of the key pair, which is exposed;-KEYALG: Specifies the cryptographic algorithm, in this case, the common RAS encryption algorithm;-keystore: The path and name of the KeyStore, If not specified, by default, the password for a ". KeyStore" file in the operating system's user directory must be at least 6 characters, can be a pure number or a combination of letters or numbers and letters, and so on, you specify "first and last name" should be the input domain name, not our personal name, Other can not fill out the 
 Here is the subject printed  after the two methods one of the above we generated a secret key  

Next to the operation of the certificate Keytool-list-keystore jssecacerts view the card inside the KeyStore, no accident will have a lot of certificates fingerprint Keytool-list-keystore Jssecacerts | grep/i ***alias (NAME) * * * Find our own Keytool-export-alias ***alias (name) * * * *-file Server.crt-keystore will be generated in the current directory Jssecacerts ER.CRT Import to the JAVA Authentication folder keytool-import-file server.cer-keystore "%java_home%\jre\lib\security\cacerts"-alias Server You can see the results using the following command:
Keytool-list-keystore "%java_home%\jre\lib\security\cacerts" | grep Server

Here, signing the certificate is complete, you can use restful to request HTTPS service,