maven+springmvc+mybatis基本开发环境搭建
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maven+springmvc+mybatis基本开发环境搭建
这是最基本，精简的maven+springmvc+mybatis的开发环境搭建教程，大部分文件都可以直接copy下来使用，如有错误，欢迎指正
所需要的各项依赖的版本就不写了，POM里都有
一、maven配置修改(settings.xml文件修改)
settings.xml文件位于maven根目录conf下，一般修改localRepository、配置mirror和profile就足以满足大部分开发需要。
<?xml version="1.0" encoding="utf-8"?><settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd"> <!--本次存储路径，该路径存储maven下载的文件,可以随便改,不要放在c盘,我这里是在虚拟机里搭建的测试环境,图方便所以放在c盘,你们如何要用就改下这个路径--> <localRepository>c:/repo</localRepository> <pluginGroups></pluginGroups> <proxies></proxies> <servers></servers> <mirrors> <!--把maven库改成阿里的镜像,速度更快--> <mirror> <id>alimaven</id> <mirrorOf>central</mirrorOf> <name>aliyun maven</name> <url>http://maven.aliyun.com/nexus/content/groups/public/</url> </mirror> </mirrors> <profiles> <!--该项是强烈建议配置的,避免运行maven clean的时候导致项目出现问题--> <profile> <id>jdk-1.8</id> <activation> <activeByDefault>true</activeByDefault> <jdk>1.8</jdk> </activation> <properties> <!--下面三个1.8可以根据你项目使用的jdk版本修改--> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion> </properties> </profile> </profiles></settings>二、log4j2配置(log4j2.xml)
日志使用log4j2+slf4j，log4j2基础配置如下，具体配置请参考
http://logging.apache.org/log4j/2.x/manual/configuration.html
将该文件放在项目WEB-INF/classes目录下
<?xml version="1.0" encoding="UTF-8"?><Configuration status="WARN"> <!--全局日志级别，低于此级别的日志不会被处理和记录--> <ThresholdFilter level="WARN" onMatch="ACCEPT" onMismatch="DENY" /> <Appenders> <!--配置console appender，将日志输出到console--> <Console name="Console" target="SYSTEM_OUT"> <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" /> </Console> </Appenders> <Loggers> <!--必须项，根logger，此处配置为debug级别--> <Root level="debug"> <AppenderRef ref="Console" /> </Root> </Loggers></Configuration>三、POM，这里都是最基本的依赖，无任何多余依赖，（security依赖估计你们用不到，就暂时注释掉了）
这里的配置都是最基础依赖，基本没有任何多余依赖，可直接拿去用
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>org.szq</groupId> <artifactId>learn</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>learn Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- <spring.security>4.2.2.RELEASE</spring.security> --> <org.apache.taglibs>1.2.5</org.apache.taglibs> <org.apache.logging.log4j>2.9.0</org.apache.logging.log4j> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-framework-bom</artifactId> <version>4.3.10.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-test --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <scope>test</scope> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> </dependency> <!-- <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-web</artifactId> <version>${spring.security}</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-config</artifactId> <version>${spring.security}</version> </dependency> --> <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.0</version> </dependency> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.5</version> </dependency> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.44</version> </dependency> <!-- https://mvnrepository.com/artifact/junit/junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.25</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-slf4j-impl --> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-slf4j-impl</artifactId> <version>${org.apache.logging.log4j}</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>${org.apache.logging.log4j}</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>${org.apache.logging.log4j}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.taglibs/taglibs-standard-spec --> <dependency> <groupId>org.apache.taglibs</groupId> <artifactId>taglibs-standard-spec</artifactId> <version>${org.apache.taglibs}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.taglibs/taglibs-standard-impl --> <dependency> <groupId>org.apache.taglibs</groupId> <artifactId>taglibs-standard-impl</artifactId> <version>${org.apache.taglibs}</version> </dependency> <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.38</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jdbc --> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-jdbc</artifactId> <version>8.5.20</version> </dependency> </dependencies> <build> <finalName>learn</finalName> </build></project>四、web.xml配置
web.xml配置不必多说，具体配置请自行搜索相关教程。
关于CharacterEncodingFilter编码过滤器的作用，可以看这里
http://blog.csdn.net/lianjunzongsiling/article/details/77926370
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> <display-name>Archetype Created Web Application</display-name> <!--ContextLoaderListener所需配置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:applicationContext.xml</param-value> </context-param> <!--配置spring ContextLoaderListener，必须项 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- characterEncodingFilter字符编码过滤器 --> <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/</url-pattern> </filter-mapping> <!-- springmvc起始配置，配置DispatcherServlet --> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <!--测试项目，所以此处留空，具体原因请查看spring文档 --> <param-value></param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <!--这里是/，不是/* --> <url-pattern>/</url-pattern> </servlet-mapping></web-app>五、applicationContext.xml配置
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 重要,启用@requestmapping等注解 --> <mvc:annotation-driven /> <context:component-scan base-package="com.szq.learn.controller" /> <context:component-scan base-package="com.szq.learn.service" /> <!-- 配置datasource --> <bean id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource" destroy-method="close"> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/learn?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC" /> <property name="username" value="root" /> <property name="password" value="passw0rd" /> </bean> <!-- 启用事务注解 --> <tx:annotation-driven transaction-manager="transactionManager" /> <!-- 配置 事务管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <!-- mybatis配置 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="mapperLocations" value="classpath*:mybatis_mappers/*.xml" /> <property name="typeAliasesPackage" value="com.szq.learn.vo" /> </bean> <!-- mybatis映射扫描器 --> <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.szq.learn.dao" /> </bean> <!-- jsp解析器 --> <bean id="jspvr" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean></beans>六、mapper.xml配置(例：UserDao.xml)
将该文件放在WEB-INF/classes/mybatis_mappers目录下，mybatis的mapper配置参考这里
http://www.mybatis.org/mybatis-3/zh/sqlmap-xml.html
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.szq.learn.dao.UserDao"> <select id="getUserByUid" resultType="UserVO"> SELECT `id`, `u_name` AS 'uname', `u_password` AS 'upassword', `c_time` AS 'ctime' FROM `t_user` WHERE `id` = #{uid}; </select></mapper>七、数据库脚本
CREATE DATABASE `learn`;CREATE TABLE `t_user` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `u_name` varchar(36) NOT NULL DEFAULT '' COMMENT '用户名', `u_password` varchar(36) NOT NULL DEFAULT '' COMMENT '用户密码', `c_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '用户注册创建时间', PRIMARY KEY (`id`), UNIQUE KEY `uk_u_name` (`u_name`) COMMENT '用户名必须唯一') ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='用户表';INSERT INTO `t_user` (`u_name`, `u_password`) VALUES ('admin', 'admin');八、DAO文件(UserDao.java)
package com.szq.learn.dao;import org.apache.ibatis.annotations.Param;import com.szq.learn.vo.UserVO;public interface UserDao { /** * 根据uid查找用户信息 * @param uid * @return * @throws Exception */ public UserVO getUserByUid(@Param("uid") int uid) throws Exception;}九、service和serviceimpl(UserService.java，UserServiceImpl)
package com.szq.learn.service;import com.szq.learn.vo.UserVO;public interface UserService { /** * 根据uid查找用户信息 * @param uid * @return * @throws Exception */ public UserVO getUserByUid(Integer uid) throws Exception;}package com.szq.learn.service.impl;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import com.szq.learn.dao.UserDao;import com.szq.learn.service.UserService;import com.szq.learn.vo.UserVO;@Servicepublic class UserServiceImpl implements UserService { @Autowired private UserDao userDao; @Override public UserVO getUserByUid(Integer uid) throws Exception { return userDao.getUserByUid(uid); }}十、bean文件(UserVO.java)
package com.szq.learn.vo;public class UserVO { private int id; private String uname; private String upassword; private String ctime; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getUname() { return uname; } public void setUname(String uname) { this.uname = uname; } public String getUpassword() { return upassword; } public void setUpassword(String upassword) { this.upassword = upassword; } public String getCtime() { return ctime; } public void setCtime(String ctime) { this.ctime = ctime; } @Override public String toString() { return "UserVO [id=" + id + ", uname=" + uname + ", upassword=" + upassword + ", ctime=" + ctime + "]"; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((ctime == null) ? 0 : ctime.hashCode()); result = prime * result + id; result = prime * result + ((uname == null) ? 0 : uname.hashCode()); result = prime * result + ((upassword == null) ? 0 : upassword.hashCode()); return result; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; UserVO other = (UserVO) obj; if (ctime == null) { if (other.ctime != null) return false; } else if (!ctime.equals(other.ctime)) return false; if (id != other.id) return false; if (uname == null) { if (other.uname != null) return false; } else if (!uname.equals(other.uname)) return false; if (upassword == null) { if (other.upassword != null) return false; } else if (!upassword.equals(other.upassword)) return false; return true; }}十一、控制器(PageController.java)
package com.szq.learn.controller;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;import com.szq.learn.service.UserService;@Controllerpublic class PageController { private Logger logger = LoggerFactory.getLogger(getClass().getSimpleName()); @Autowired private UserService userService; @RequestMapping("/index") public String getIndex(Model model) { try { model.addAttribute("user", userService.getUserByUid(1)); return "index"; } catch (Exception e) { logger.warn("", e); return "404"; } }}八，jsp文件(index.jsp)
该文件放在WEB-INF/jsp下
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>index</title></head><body> <div id="outerContainer"> <h1>welcome, ${user.getUname() }</h1> </div></body></html>以上是搭建一个最基础的开发环境所必须的元素，具体如何把这些元素组合成一个可运行的webapp就不多写了，教程很多。
原创不易，转发请注明出处—shizhongqi
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