用jsse创建keystore文件和导出cert

package com.gc.test.cert;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.InputStream;
import java.security.SecureRandom;

import javax.net.ssl.KeyManager;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;



public class CertTest {
	public CertTest(){
	//空构造
	}
	
	//create ketstore and get cert file
	
	class initial{
		
		String stringidentity =null;
		
		String stringpassword = null;
		
		String stringname = null;
		
		String stringhome = System.getProperty("user.home"+"/"+"keystore");
		
		String stringkeystore = null;
		
		TrustManager[] arturstmanager; // 负责管理做出信任决定时使用的的信任材料，也负责决定是否接受同位体提供的凭据
		
		KeyManager[] arkeymanager; //KeyManager 负责管理用于验证到同位体的本地 SSLSocket 的密钥内容
		
		SSLContext sslcontext; //安全套接字协议的实现
		
		public initial(String identity,String password,String name){
			stringidentity = identity;
			stringpassword = password;
			stringname = name;
		}
		
		public initial(){
		//空构造
		}
		
		
		/**
		 * Create Dir
		 */
		public void makeDir(){
			
			File filehome = new File(stringhome);
			
			if(filehome.exists()==false){
				
				filehome.mkdirs();
			}
		}
		
		/**
		 * Create the keystore save directory
		 * @throws Exception
		 */
		public void makeStore()throws Exception{
			
			stringkeystore =stringhome;
			
			File filekeystore = new File(stringkeystore);
			
			if(filekeystore.exists()==false){
				
				System.out.println("creating keystroe..");
				
				byte[] arb = new byte[16];
				//伪随机数生成器 (PRNG) 形式
				SecureRandom sr = SecureRandom.getInstance("sha1prng");
				
				sr.nextBytes(arb);
				
				stringname ="ofcard";
				//创建key tool命令
				String[] stringCommand = new String[]{
						"keytool ",
						"-genkey ",
						"-alias ",stringidentity,
						"-keyalg ","rsa",
						"-keysize","1024",
						"-dname","cn="+ stringname,
						"-keystore ",stringname,
						"-keypass ",stringpassword,
						"-storetype ","jks",
						"-storepass ",stringpassword	
				};
				
				for(int i=0;i<stringCommand.length;i++){
					System.out.println(stringCommand[i]);
				}
			
				try {
					Process process = Runtime.getRuntime().exec(stringCommand); //处理keytool命令
					
					process.waitFor();//进程等待
					
					InputStream is = process.getErrorStream();
					
					BufferedInputStream br = new BufferedInputStream(process.getErrorStream());
					
					int len = br.available();
					
					byte[] b = new byte[len];
					
					br.read(b);
					
					String msgerr = new String(b);
					
					System.out.println("/n"+msgerr.trim());
					
					if(process.exitValue()!=0){
						
						new Exception().printStackTrace();
						
						System.exit(-1);
					}
				} catch (Exception e) {
					e.printStackTrace();
				}
				System.out.println("\n"+"make store successfully");
			}
		}
		
		/**
		 * 生成keystore文件
		 */
		public void getCert(){
			String[] stringCommand = new String[]{
					"keytool ",
					"-export ",
					"-keystore ",stringhome,
					"-alias ",stringidentity,
					"-file ","c:\\serverx.cer",
					"-storetype ","jks",
					"-storepass",stringpassword
			};
			
			for(int i=0;i<stringCommand.length;i++){
				
				System.out.println(stringCommand[i]);
				
			}
			try {
				Process process = Runtime.getRuntime().exec(stringCommand); //处理keytool命令
				
				process.waitFor();//进程等待
				
				InputStream is = process.getErrorStream();
				
				BufferedInputStream br = new BufferedInputStream(process.getErrorStream());
				
				int len = br.available();
				
				byte[] b = new byte[len];
				
				br.read(b);
				
				String msgerr = new String(b);
				
				System.out.println("/n"+msgerr.trim());
				
				if(process.exitValue()!=0){
					
					new Exception().printStackTrace();
					
					System.exit(-1);
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
			System.out.println("\n"+"make store successfully");
		}

	}
}