烟柳锁池塘

JDK：Java Development Kit 的简称，java 开发工具包，提供了 java 的开发环境和运行环境。JRE：Java Runtime Environment 的简称，java 运行环境，为 java 的运行提供了所需环境。具体来说 JDK 其实包含了 JRE，...

1.在tomcat官网下载一个tomcat 2.3.E:\a\apache-tomcat-8.5.56 4.5.新建CATALINA_HOME,变量是E:\a\apache-tomcat-8.5.56 再建CATALINA_BASE,变量是E:\a\apache-tomcat-8...

package com.cvs.import java.sql.import java.sql.import java.sql.import com.cvs.util.Connection conn = DBUtil..ps.ps.ps.ps.count= ps.ps.e.DBU...

<%@ page language="java" import="java.util.<%@page import="com.jspsmart.upload.String path = request.String basePath = request.+ request.get...

import java.io.import java.io.import java.util.import java.util.import javax.servlet.import javax.servlet.http.import javax.servlet.http.imp...

import java.io.import java.io.import java.util.import java.util.import javax.servlet.import javax.servlet.http.import javax.servlet.http.imp...