程序设计 – 第13页

>openssl genrsa -out private.key
>openssl rsa -in private.key -pubout -outform PEM -out public.key
// 因为java里面不识别x509格式的私钥，所以必须转换为 pkcs8格式方可使用
// java异常描述为： java.security.spec.InvalidKeySpecException: Only RSAPrivate(Crt)KeySpec and PKCS8EncodedKeySpec supported for RSA private keys
// 虽然RSAPrivate(Crt)KeySpec 也支持，但是目前还不知道怎么用
>openssl pkcs8 -topk8 -inform PEM -outform PEM -in private.key -out pkcs8_priv.pem -nocrypt

>openssl genrsa -out private.key

>openssl rsa -in private.key -pubout -outform PEM -out public.key

// 因为java里面不识别x509格式的私钥，所以必须转换为 pkcs8格式方可使用

// java异常描述为： java.security.spec.InvalidKeySpecException: Only RSAPrivate(Crt)KeySpec and PKCS8EncodedKeySpec supported for RSA private keys

// 虽然RSAPrivate(Crt)KeySpec 也支持，但是目前还不知道怎么用

>openssl pkcs8 -topk8 -inform PEM -outform PEM -in private.key -out pkcs8_priv.pem -nocrypt

…

继续阅读“JAVA使用openssl生成的公私钥做加密解密”

ANT构建和部署项目

概述：参考资料： ANT简明教程[转载]: http://www.cnblogs.com …

继续阅读“ANT构建和部署项目”

JSP中response.addCookie的问题

脚本：

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class CookieExample extends HttpServlet {

    public void doGet(HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException
    {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();

        // print out cookies

        Cookie[] cookies = request.getCookies();
        for (int i = 0; i < cookies.length; i++) {
            Cookie c = cookies[i];
            String name = c.getName();
            String value = c.getValue();
            out.println(name + " = " + value);
        }

        // set a cookie

        String name = request.getParameter("cookieName");
        if (name != null && name.length() > 0) {
            String value = request.getParameter("cookieValue");
            Cookie c = new Cookie(name, value);
            response.addCookie(c);
        }
    }
}

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

public class CookieExample extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws IOException, ServletException

{

response.setContentType("text/html");

PrintWriter out = response.getWriter();

// print out cookies

Cookie[] cookies = request.getCookies();

for (int i = 0; i < cookies.length; i++) {

Cookie c = cookies[i];

String name = c.getName();

String value = c.getValue();

out.println(name + " = " + value);

}

// set a cookie

String name = request.getParameter("cookieName");

if (name != null && name.length() > 0) {

String value = request.getParameter("cookieValue");

Cookie c = new Cookie(name, value);

response.addCookie(c);

}

如果cookie的name中含有 & …

继续阅读“JSP中response.addCookie的问题”

java线程

java线程和操作系统线程之间的关系： java线程管理是JVM的一部分，虽然大部分JVM直接映 …

继续阅读“java线程”