摘要： //eg1,没有使用单实例，eg2有package cn.itcast;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;im... 阅读全文

摘要： //create1 速度较慢，create2较快，但是要根据数据库不同来决定//ps = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS); ps可以获取 idpackage cn.itcast.batch;import java... 阅读全文

摘要： if(items.getClass().isArray){ this.collection = new ArrayList(); int length = Array.getLength(items); for(int i=0;i<length;i++){ Object value = Array... 阅读全文

摘要： package com.test1.www;class NutritionFacts { //必须 private int servingSize; private int servings; //可选， Build类必须初始化 private int calories; private int f... 阅读全文

摘要： RegisterServlet：检验server，client验证码是否一致ImageServlet:产生验证码Register.html 用户名: 密码: 认证码： RegisterServlet：public class RegisterServlet extends Http... 阅读全文

摘要： 用户输入FormServlet链接FormServlet-〉form.jsp->DoFormServletFormServlet:产生token，放在session中form.jsp：hidden拿到token数据 并一同提交到>DoFormServletDoFormServlet：检测是否重复提交... 阅读全文

摘要： public class CookiesServlet2 extends HttpServlet { // 显示商品详细信息 public void doGet(HttpServletRequest request, HttpServletResponse response) throws Se... 阅读全文

摘要： public class CookiesServlet1 extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletExcepti... 阅读全文

摘要： public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setCharacterEncoding("... 阅读全文

摘要： public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setCharacterEncoding("... 阅读全文