新版idea创建springMVC项目
目录
- 新版idea创建springMVC项目
- 1.创建项目
- 2. 使用maven导入需要的包
- 3.配置tomcat
- 4.完善项目结构
- 4.配置springMVC并测试
- 5.配置文件Mybaits
- 代码编写示例，登录功能
- 效果
1.创建项目
new一个project
进行下一步
继续下一步，设置项目名，存放位置，项目所属公司
2. 使用maven导入需要的包
查看maven配置，及使用本地库
导包
导入spring框架所需的包
首先在properties中加入spring.version
然后导入依赖
<!--spring核心包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.2.13.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>3.2.13.RELEASE</version>
</dependency>
导入mybaits及数据库所需包
导入通用包
导入alibaba及log4j包
最终的pom.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>demo1</artifactId>
<version>1.0-SNAPSHOT</version>
<name>demo1</name>
<packaging>war</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
<junit.version>5.6.2</junit.version>
<spring.version>4.3.6.RELEASE</spring.version>
</properties>
<dependencies>
<!--javax包-->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>8.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.mvc</groupId>
<artifactId>javax.mvc-api</artifactId>
<version>1.0.0</version>
</dependency>
<!--添加的javax包-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>jsr250-api</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.1.0.Final</version>
</dependency>
<!--junit包-->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!--spring核心包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.2.13.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>3.2.13.RELEASE</version>
</dependency>
<!-- 数据库 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.31</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<!--mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.6</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
</dependency>
<!-- 通用包-->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.2.2</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>commons-pool</groupId>
<artifactId>commons-pool</artifactId>
<version>1.6</version>
</dependency>
<!-- 其他 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.47</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.4.1.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.logging</groupId>
<artifactId>jboss-logging</artifactId>
<version>3.1.0.CR2</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>29.0-jre</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.3.0</version>
</plugin>
</plugins>
</build>
</project>
3.配置tomcat
添加tomcat
配置tomacat，主要是tomcat版本,端口，默认网址
4.完善项目结构
在java中添加controller,services,dao,entity,interceptor四个package。
在entity中存放实体类，在controller中处理页面请求request与返回给页面信息，dao层调用处理数据库，services存放调用的各种方法,interceptor中保存过滤器相关的类。
完善webapp
在webapp下添加static文件夹，用来存放js等相关文件。
在webapp下进行index.jsp，作为初始界面。
<%--
Created by IntelliJ IDEA.
User: 19781
Date: 2020/11/15
Time: 13:21
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
初始界面index.jsp ,欢迎
</body>
</html>
在WEB-INF目录下添加jsp文件夹，并创建login.jsp
4.配置springMVC并测试
编写web.xml,配置springMVC-servlet,log4j和applicatinoContext-mybaits.xml
web.xml
<?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_4_0.xsd"
version="4.0">
<display-name>springMVC</display-name>
<!--初始界面-->
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list>
<!-- 1.contextConfigLocation-mybaits参数用来指定SpringMybaits的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext-*.xml</param-value>
</context-param>
<!--2.配置Spring官方提供的监听器-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--3.前端控制器：拦截所有的请求，进行2次分配-->
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springMVC-servlet.xml</param-value>
</init-param>
<!-- 优先加载-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<!--所有请求都被拦截-->
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--4.过滤器：处理请求中出现的中文乱码-->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>
org.springframework.web.filter.CharacterEncodingFilter
</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<!-- /* 所有请求-->
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 静态资源 -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.css</url-pattern>
<url-pattern>*.js</url-pattern>
<url-pattern>*.gif</url-pattern>
<url-pattern>*.png</url-pattern>
<url-pattern>*.jpg</url-pattern>
<url-pattern>*.jpeg</url-pattern>
<url-pattern>*.swf</url-pattern>
<url-pattern>*.mp4</url-pattern>
</servlet-mapping>
<!--5.配置log4j-->
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.properties</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.util.Log4jConfigListener
</listener-class>
</listener>
</web-app>
springMVC-servlet.xml
<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
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">
<!--1.扫描Controller,并将其生命周期纳入Spring管理-->
<context:component-scan base-package="com.test.controller"/>
<!--2. 配置 message-converters -->
<mvc:annotation-driven>
<mvc:message-converters>
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/json;charset=UTF-8</value>
</list>
</property>
</bean>
<bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
<value>application/json</value>
</list>
</property>
<property name="features">
<list>
<!-- Date的日期转换器 -->
<value>WriteDateUseDateFormat</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<!-- 3.配置多视图解析器ContentNegotiatingViewResolver：使用了不同的请求方式去请求同一个资源，返回各自的形式 -->
<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<property name="favorParameter" value="true"/>
<property name="defaultContentType" value="text/html"/>
<property name="mediaTypes">
<map>
<entry key="html" value="text/html;charset=UTF-8"/>
<entry key="json" value="application/json;charset=UTF-8"/>
<entry key="xml" value="application/xml;charset=UTF-8"/>
</map>
</property>
<!-- InternalResourceViewResolver是jsp的视图解析器，在无法匹配到html、json、xml的情况下，会返回jsp的视图-->
<property name="viewResolvers">
<list>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</list>
</property>
</bean>
<!--4.如何引入静态资源文件-->
<mvc:resources location="/statics/" mapping="/statics/**"/>
<!--5.拦截器 interceptors-->
<!-- 6.配置MultipartResolver，用于上传文件，使用spring的CommonsMultipartResolver -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="5000000"/>
<property name="defaultEncoding" value="UTF-8"/>
</bean>
</beans>
applicationContext-mybaits.xml
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
</beans>
log4j
log4j.rootLogger=debug,CONSOLE,file
#log4j.rootLogger=ERROR,ROLLING_FILE
log4j.logger.com.test=debug
log4j.logger.org.apache.ibatis=debug
log4j.logger.org.mybatis.spring=debug
log4j.logger.java.sql.Connection=debug
log4j.logger.java.sql.Statement=debug
log4j.logger.java.sql.PreparedStatement=debug
log4j.logger.java.sql.ResultSet=debug
######################################################################################
# Console Appender u65e5u5fd7u5728u63a7u5236u8f93u51fau914du7f6e
######################################################################################
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.Threshold=debug
log4j.appender.CONSOLE.DatePattern=yyyy-MM-dd
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern= - (%r ms) - %d{yyyy-M-d HH:mm:ss}%x[%5p](%F:%L) %m%n
######################################################################################
# Rolling File u6587u4ef6u5927u5c0fu5230u8fbeu6307u5b9au5c3au5bf8u7684u65f6u5019u4ea7u751fu4e00u4e2au65b0u7684u6587u4ef6
######################################################################################
#log4j.appender.ROLLING_FILE=org.apache.log4j.RollingFileAppender
#log4j.appender.ROLLING_FILE.Threshold=INFO
#log4j.appender.ROLLING_FILE.File=${baojia.root}/logs/log.log
#log4j.appender.ROLLING_FILE.Append=true
#log4j.appender.ROLLING_FILE.MaxFileSize=5000KB
#log4j.appender.ROLLING_FILE.MaxBackupIndex=100
#log4j.appender.ROLLING_FILE.layout=org.apache.log4j.PatternLayout
#log4j.appender.ROLLING_FILE.layout.ConversionPattern=%d{yyyy-M-d HH:mm:ss}%x[%5p](%F:%L) %m%n
######################################################################################
# DailyRolling File u6bcfu5929u4ea7u751fu4e00u4e2au65e5u5fd7u6587u4ef6uff0cu6587u4ef6u540du683cu5f0f:log2009-09-11
######################################################################################
log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
log4j.appender.file.DatePattern=yyyy-MM-dd
log4j.appender.file.File=${SMBMS_C12_10.root}/logs/log.log
log4j.appender.file.Append=true
log4j.appender.file.Threshold=debug
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern= - (%r ms) - %d{yyyy-M-d HH:mm:ss}%x[%5p](%F:%L) %m%n
#DWR u65e5u5fd7
#log4j.logger.org.directwebremoting = ERROR
#u663eu793aHibernateu5360u4f4du7b26u7ed1u5b9au503cu53cau8fd4u56deu503c
#log4j.logger.org.hibernate.type=DEBUG,CONSOLE
#log4j.logger.org.springframework.transaction=DEBUG
#log4j.logger.org.hibernate=DEBUG
#log4j.logger.org.acegisecurity=DEBUG
#log4j.logger.org.apache.myfaces=TRACE
#log4j.logger.org.quartz=DEBUG
#log4j.logger.com.opensymphony=INFO
#log4j.logger.org.apache.struts2=DEBUG
log4j.logger.com.opensymphony.xwork2=debug
当前文件结构
添加对应的javeBean
在springMVC-servlet中配置controller
在applicationContext-mybaits中添加services层和dao层
测试
启动tomcat。结果在浏览器中显示index.jsp界面
在login.jsp中添加登录表格
<section class="loginCont" style="text-align: center">
<form class="loginForm" action="${pageContext.request.contextPath }/dologin" name="actionForm" id="actionForm" method="post" >
<div class="info">${error}</div>
<div class="inputbox">
<%--@declare id="user"--%><label for="user">用户名：</label>
<input type="text" class="input-text" id="userCode" name="userCode" placeholder="请输入用户名" required/>
</div>
<div class="inputbox">
<%--@declare id="mima"--%><label for="mima">密码：</label>
<input type="password" id="userPassword" name="userPassword" placeholder="请输入密码" required/>
</div>
<div class="subBtn">
<input type="submit" value="登录"/>
<input type="reset" value="重置"/>
</div>
</form>
</section>
在controller层添加LoginController类
package com.test.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/**
*
*/
@Controller
public class LoginController {
@RequestMapping("/test")
public String welcome() {
return "login";
}
}
在地址栏中输入http://localhost:8080/test
此时SpringMVC结构
5.配置文件Mybaits
新建database.properties中放置数据库连接内容
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC
user=root
password=root
minIdle=45
maxIdle=50
initialSize=5
maxActive=100
maxWait=100
removeAbandonedTimeout=180
removeAbandoned=true
在applicationContext-mybaits.xml中配置数据库连接,整合mybaits与springMVC,配置事务管理
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.test.service"/>
<context:component-scan base-package="com.test.dao"/>
<!-- 读取数据库配置文件 -->
<context:property-placeholder location="classpath:database.properties"/>
<!-- JNDI获取数据源(使用dbcp连接池) -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" >
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${user}" />
<property name="password" value="${password}" />
<property name="initialSize" value="${initialSize}"/>
<property name="maxActive" value="${maxActive}"/>
<property name="maxIdle" value="${maxIdle}"/>
<property name="minIdle" value="${minIdle}"/>
<property name="maxWait" value="${maxWait}"/>
<property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}"/>
<property name="removeAbandoned" value="${removeAbandoned}"/>
<!-- sql 心跳 -->
<property name= "testWhileIdle" value="true"/>
<property name= "testOnBorrow" value="false"/>
<property name= "testOnReturn" value="false"/>
<property name= "validationQuery" value="select 1"/>
<property name= "timeBetweenEvictionRunsMillis" value="60000"/>
<property name= "numTestsPerEvictionRun" value="${maxActive}"/>
</bean>
<!-- 配置mybitas SqlSessionFactoryBean-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<!--JDBC事务管理 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--使用spring的配置自动完成创建代理织入切面的工作-->
<aop:aspectj-autoproxy/>
<!-- <aop:aspectj-autoproxy/>有一个proxy-target-class属性，默认为false，表示使用jdk动态代理织入增强，
当配为<aop:aspectj-autoproxy poxy-target-class="true"/>时，表示使用CGLib动态代理技术织入增强-->
<aop:config proxy-target-class="true">
<!--定义切点 exeuction()方法匹配模式串，(* *com.test.service..*(..))表示services类中的所有方法 -->
<aop:pointcut expression="execution(* *com.test.service..*(..))" id="transService"/>
<aop:advisor pointcut-ref="transService" advice-ref="txAdvice" />
</aop:config>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="test*" propagation="REQUIRED" rollback-for="Exception" />
</tx:attributes>
</tx:advice>
<!-- AOP 事务处理 结束 -->
</beans>
mybaits-config.xml中配置mybaits相关
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<!-- changes from the defaults -->
<setting name="lazyLoadingEnabled" value="false" />
</settings>
<typeAliases>
<!--这里给实体类取别名，方便在mapper配置文件中使用-->
<package name=""/>
</typeAliases>
</configuration>
注意1 jdbc-mysql6.0以上的版本必须配置serverTimezone参数
代码编写示例，登录功能
功能描述
在页面login.jsp填写用户名和密码信息，controller层根据路径调用方法，在数据库查询用户，如果存在的话将用户信息存放在session中，否则返回错误信息。
Session可以作为独立的信息单独存放，可以建立Constants类来存放信息。
1.jsp页面 login.jsp ,frame.jsp
<%--
Created by IntelliJ IDEA.
User: 19781
Date: 2020/11/15
Time: 13:21
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Login</title>
</head>
<body>
login.jsp
<section class="loginCont" style="text-align: center">
<form class="loginForm" action="${pageContext.request.contextPath }/doLogin" name="actionForm" id="actionForm" method="post" >
<div class="info">${error}</div>
<div class="inputbox">
<%--@declare id="user"--%><label for="user">用户名：</label>
<input type="text" class="input-text" id="userCode" name="userCode" placeholder="请输入用户名" required/>
</div>
<div class="inputbox">
<%--@declare id="mima"--%><label for="mima">密码：</label>
<input type="password" id="userPassword" name="userPassword" placeholder="请输入密码" required/>
</div>
<div class="subBtn">
<input type="submit" value="登录"/>
<input type="reset" value="重置"/>
</div>
</form>
</section>
</body>
</html>
frame.jsp
<%--
Created by IntelliJ IDEA.
User: 19781
Date: 2020/11/16
Time: 10:55
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
frame.jsp
登录成功 ，欢迎${userSession.userName},${userSession. userCode}
</body>
</html>
2.设计数据库建立用户信息表格
创建表
CREATE TABLE `test_user` (
`id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`userCode` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户编码',
`userName` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户名称',
`userPassword` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户密码',
`gender` INT(10) DEFAULT NULL COMMENT '性别（1:女、 2:男）',
`birthday` DATE DEFAULT NULL COMMENT '出生日期',
`phone` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '手机',
`address` VARCHAR(30) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地址',
PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
insert into `test_user`
(`id`,`userCode`,`userName`,`userPassword`,`gender`,`birthday`,`phone`,`address`)
values
(1,'admin','系统管理员','1234567',1,'1983-10-10','13688889999','北京市海淀区成府路207号'),
(2,'liming','李明','0000000',2,'1983-12-10','13688884457','北京市东城区前门东大街9号'),
(5,'hanlubiao','韩路彪','0000000',2,'1984-06-05','18567542321','北京市朝阳区北辰中心12号'),
(6,'zhanghua','张华','0000000',1,'1983-06-15','13544561111','北京市海淀区学院路61号'),
(7,'wangyang','王洋','0000000',2,'1982-12-31','13444561124','北京市海淀区西二旗辉煌国际16层'),
(8,'zhaoyan','赵燕','0000000',1,'1986-03-07','18098764545','北京市海淀区回龙观小区10号楼'),
(10,'sunlei','孙磊','0000000',2,'1981-01-04','13387676765','北京市朝阳区管庄新月小区12楼'),
(11,'sunxing','孙兴','0000000',2,'1978-03-12','13367890900','北京市朝阳区建国门南大街10号'),
(12,'zhangchen','张晨','0000000',1,'1986-03-28','18098765434','朝阳区管庄路口北柏林爱乐三期13号楼'),
(13,'dengchao','邓超','0000000',2,'1981-11-04','13689674534','北京市海淀区北航家属院10号楼'),
(14,'yangguo','杨过','0000000',2,'1980-01-01','13388886623','北京市朝阳区北苑家园茉莉园20号楼'),
(15,'zhaomin','赵敏','0000000',1,'1987-12-04','18099897657','北京市昌平区天通苑3区12号楼');
3.根据表在entity中建立实体类User
根据数据库中的表产生，使用Setter和Getter产生set和get方法
package com.test.entity;
import com.alibaba.fastjson.annotation.JSONField;
import org.hibernate.validator.constraints.Length;
import org.hibernate.validator.constraints.NotEmpty;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Past;
import java.util.Date;
public class User {
private Integer id; //id
@NotEmpty(message="用户编码不能为空")
private String userCode; //用户编码
@NotEmpty(message="用户名称不能为空")
private String userName; //用户名称
@NotNull(message="密码不能为空")
@Length(min=6,max=10,message="用户密码长度为6-10")
private String userPassword; //用户密码
private Integer gender; //性别
@Past(message="必须是一个过去的时间")
//@DateTimeFormat(pattern="yyyy-MM-dd")
@JSONField(format="yyyy-MM-dd")
private Date birthday; //出生日期
private String phone; //电话
private String address; //地址
}
4 新建Constants类存放session信息
package com.test.tools;
public class Constants {
public static final String USER_SESSION = "userSession";
public final static String SYS_MESSAGE = "message";
}
5 编写Controller层
需要注意，要把controller层在springMVC-servlet中注册为javaBean
package com.test.controller;
import com.test.entity.User;
import com.test.service.user.UserService;
import com.test.tools.Constants;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
/**
*
*/
@Controller
public class LoginController {
//log4j
private static final Logger logger= Logger.getLogger(LoginController.class);
//service层
@Autowired
private UserService userService;
@RequestMapping("/test")
public String welcome() {
return "login";
}
//提交登陆表单，实现登陆功能
@RequestMapping(value = "/doLogin")
public String doLogin(@RequestParam(value = "userCode") String userCode,
@RequestParam(value = "userPassword") String password,
HttpSession session,
HttpServletRequest request){
logger.debug("enter LoginController =====>doLogin method");
//和数据库中的用户信息进行校验
User loginUser = this.userService.login(userCode, password);
if(loginUser !=null){//说明用户存在
//使用session容器，把该用户放进去
session.setAttribute(Constants.USER_SESSION,loginUser);
//页面的跳转
return "redirect:/frame";
}else {//用户不存在
//使用request容器，返回一个提示信息
request.setAttribute("error","用户名或者密码错误");
//页面的跳转
return "login";
}
}
@RequestMapping("/frame")
public String frame(){
return "frame";
}
}
6 编写Services层
注意要在applicationContext-mybaits.xml中注册为javaBean
目录结构
UserService接口
package com.test.service.user;
import com.test.entity.User;
public interface UserService {
User login(String userCode, String password);
}
UserServiceImpl实现
package com.test.service.user;
import com.test.controller.LoginController;
import com.test.dao.user.UserMapper;
import com.test.entity.User;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class UserServiceImpl implements UserService{
//log4j
private static final Logger logger1= Logger.getLogger(UserServiceImpl.class);
@Autowired
private UserMapper userMapper;
//登陆
@Override
public User login(String userCode, String password) {
logger1.debug("enter UserServiceImpl =====>login method param: userCode="+userCode
+" password= "+password);
User user = userMapper.getUserByUserCode(userCode);
logger1.debug("enter UserServiceImpl =====>login method " +
"return: user=:user.id"+user.getId()+
" user.userCode="+user.getUserCode()+
" user.userName="+user.getUserName());
if(user!=null && !user.getUserPassword().equals(password)){
//当用户存在，但是密码不一致，赋值为null
user=null;
}
return user;
}
}
7.编写dao层
目录结构
首先在applicationContext-mybaits.xml中将dao层的mapper注册为javaBean,放在最后即可。
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.test.dao" />
</bean>
UserMapper接口
package com.test.dao.user;
import com.test.entity.User;
import org.apache.ibatis.annotations.Param;
public interface UserMapper {
//根据用户名获得用户
public User getUserByUserCode(@Param("userCode") String userCode);
}
UserMapper.xml
<?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.test.dao.user.UserMapper">
<!--根据用户名获得用户-->
<select id="getUserByUserCode" parameterType="string" resultType="User">
select * from test_user
<where>
<if test="userCode!=null and userCode!=''">
userCode=#{userCode}
</if>
</where>
</select>
</mapper>
注意2 在pom的build中添加resource资源，否则会找不到mapper
<!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉。 -->
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
效果
初始界面 index.jsp
在地址栏输入localhost:8080/test 进入登录界面login.jsp
登录成功
登录失败
