专业的网站制作设计,福田祥菱官网,网站托管,建设全网营销型网站#x1f973;#x1f973;Welcome Huihuis Code World ! !#x1f973;#x1f973; 接下来看看由辉辉所写的关于SpringMVC的相关操作吧 目录
#x1f973;#x1f973;Welcome Huihuis Code World ! !#x1f973;#x1f973; 效果演示
一.导入项目的相关依赖
二.… Welcome Huihuis Code World ! ! 接下来看看由辉辉所写的关于SpringMVC的相关操作吧 目录
Welcome Huihuis Code World ! ! 效果演示
一.导入项目的相关依赖
二.添加框架的配置文件
generatorConfig.xml
jdbc.properties
log4j2.xml
Spring-context.xml
Spring-mvc.xml
SpringMVCzy.xml
三.工具类
PagBean
PageTag
StringUtils
四.逆向生成代码
1.发布项目
2.生成代码
五.编写后台代码
biz
web
六.前台代码编写
index.jsp
edit.jsp 效果演示 一.导入项目的相关依赖 将项目需要用到的插件以及依赖导入到pom.xml中 ?xml version1.0 encodingUTF-8?project xmlnshttp://maven.apache.org/POM/4.0.0 xmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsdmodelVersion4.0.0/modelVersiongroupIdorg.example/groupIdartifactIdWHzyssm/artifactIdversion1.0-SNAPSHOT/versionpackagingwar/packagingnameSpring-Mybatis Maven Webapp/name!-- FIXME change it to the projects website --urlhttp://www.example.com/urlpropertiesproject.build.sourceEncodingUTF-8/project.build.sourceEncodingmaven.compiler.source1.8/maven.compiler.sourcemaven.compiler.target1.8/maven.compiler.targetmaven.compiler.plugin.version3.7.0/maven.compiler.plugin.version!--添加jar包依赖--!--1.spring 5.0.2.RELEASE相关--spring.version5.0.2.RELEASE/spring.version!--2.mybatis相关--mybatis.version3.4.5/mybatis.version!--mysql--mysql.version5.1.44/mysql.version!--pagehelper分页jar依赖--pagehelper.version5.1.2/pagehelper.version!--mybatis与spring集成jar依赖--mybatis.spring.version1.3.1/mybatis.spring.version!--3.dbcp2连接池相关 druid--commons.dbcp2.version2.1.1/commons.dbcp2.versioncommons.pool2.version2.4.3/commons.pool2.version!--4.log日志相关--log4j2.version2.9.1/log4j2.versionlog4j2.disruptor.version3.2.0/log4j2.disruptor.versionslf4j.version1.7.13/slf4j.version!--5.其他--junit.version4.12/junit.versionservlet.version4.0.0/servlet.versionlombok.version1.18.2/lombok.versionmybatis.ehcache.version1.1.0/mybatis.ehcache.versionehcache.version2.10.0/ehcache.versionredis.version2.9.0/redis.versionredis.spring.version1.7.1.RELEASE/redis.spring.versionjackson.version2.9.3/jackson.versionjstl.version1.2/jstl.versionstandard.version1.1.2/standard.versiontomcat-jsp-api.version8.0.47/tomcat-jsp-api.versioncommons-fileupload.version1.3.3/commons-fileupload.versionhibernate-validator.version5.0.2.Final/hibernate-validator.versionshiro.version1.3.2/shiro.version/propertiesdependencies!--1.spring相关--dependencygroupIdorg.springframework/groupIdartifactIdspring-core/artifactIdversion${spring.version}/version/dependencydependencygroupIdorg.springframework/groupIdartifactIdspring-beans/artifactIdversion${spring.version}/version/dependencydependencygroupIdorg.springframework/groupIdartifactIdspring-context/artifactIdversion${spring.version}/version/dependencydependencygroupIdorg.springframework/groupIdartifactIdspring-orm/artifactIdversion${spring.version}/version/dependencydependencygroupIdorg.springframework/groupIdartifactIdspring-tx/artifactIdversion${spring.version}/version/dependencydependencygroupIdorg.springframework/groupIdartifactIdspring-aspects/artifactIdversion${spring.version}/version/dependencydependencygroupIdorg.springframework/groupIdartifactIdspring-web/artifactIdversion${spring.version}/version/dependencydependencygroupIdorg.springframework/groupIdartifactIdspring-test/artifactIdversion${spring.version}/version/dependency!--2.mybatis相关--dependencygroupIdorg.mybatis/groupIdartifactIdmybatis/artifactIdversion${mybatis.version}/version/dependency!--mysql--dependencygroupIdmysql/groupIdartifactIdmysql-connector-java/artifactIdversion${mysql.version}/version/dependency!--pagehelper分页插件jar包依赖--dependencygroupIdcom.github.pagehelper/groupIdartifactIdpagehelper/artifactIdversion${pagehelper.version}/version/dependency!--mybatis与spring集成jar包依赖--dependencygroupIdorg.mybatis/groupIdartifactIdmybatis-spring/artifactIdversion${mybatis.spring.version}/version/dependencydependencygroupIdorg.springframework/groupIdartifactIdspring-context-support/artifactIdversion${spring.version}/version/dependency!--mybatis与ehcache整合--dependencygroupIdorg.mybatis.caches/groupIdartifactIdmybatis-ehcache/artifactIdversion${mybatis.ehcache.version}/version/dependency!--ehcache依赖--dependencygroupIdnet.sf.ehcache/groupIdartifactIdehcache/artifactIdversion${ehcache.version}/version/dependencydependencygroupIdredis.clients/groupIdartifactIdjedis/artifactIdversion${redis.version}/version/dependencydependencygroupIdorg.springframework.data/groupIdartifactIdspring-data-redis/artifactIdversion${redis.spring.version}/version/dependencydependencygroupIdcom.fasterxml.jackson.core/groupIdartifactIdjackson-databind/artifactIdversion${jackson.version}/version/dependencydependencygroupIdcom.fasterxml.jackson.core/groupIdartifactIdjackson-core/artifactIdversion${jackson.version}/version/dependencydependencygroupIdcom.fasterxml.jackson.core/groupIdartifactIdjackson-annotations/artifactIdversion${jackson.version}/version/dependency!--3.dbcp2连接池相关--dependencygroupIdorg.apache.commons/groupIdartifactIdcommons-dbcp2/artifactIdversion${commons.dbcp2.version}/versionexclusionsexclusionartifactIdcommons-pool2/artifactIdgroupIdorg.apache.commons/groupId/exclusion/exclusions/dependencydependencygroupIdorg.apache.commons/groupIdartifactIdcommons-pool2/artifactIdversion${commons.pool2.version}/version/dependency!--springmvc依赖--dependencygroupIdorg.springframework/groupIdartifactIdspring-webmvc/artifactIdversion${spring.version}/version/dependency!--4.log日志相关依赖--!-- log4j2日志相关依赖 --!-- log配置Log4j2 Slf4j --!-- slf4j核心包--dependencygroupIdorg.slf4j/groupIdartifactIdslf4j-api/artifactIdversion${slf4j.version}/version/dependencydependencygroupIdorg.slf4j/groupIdartifactIdjcl-over-slf4j/artifactIdversion${slf4j.version}/versionscoperuntime/scope/dependency!--核心log4j2jar包--dependencygroupIdorg.apache.logging.log4j/groupIdartifactIdlog4j-api/artifactIdversion${log4j2.version}/version/dependencydependencygroupIdorg.apache.logging.log4j/groupIdartifactIdlog4j-core/artifactIdversion${log4j2.version}/version/dependency!--用于与slf4j保持桥接--dependencygroupIdorg.apache.logging.log4j/groupIdartifactIdlog4j-slf4j-impl/artifactIdversion${log4j2.version}/version/dependency!--web工程需要包含log4j-web非web工程不需要--dependencygroupIdorg.apache.logging.log4j/groupIdartifactIdlog4j-web/artifactIdversion${log4j2.version}/versionscoperuntime/scope/dependency!--需要使用log4j2的AsyncLogger需要包含disruptor--dependencygroupIdcom.lmax/groupIdartifactIddisruptor/artifactIdversion${log4j2.disruptor.version}/version/dependency!--5.其他--dependencygroupIdjunit/groupIdartifactIdjunit/artifactIdversion${junit.version}/version
!-- scopetest/scope--/dependencydependencygroupIdjavax.servlet/groupIdartifactIdjavax.servlet-api/artifactIdversion${servlet.version}/versionscopeprovided/scope/dependencydependencygroupIdorg.projectlombok/groupIdartifactIdlombok/artifactIdversion${lombok.version}/versionscopeprovided/scope/dependencydependencygroupIdjstl/groupIdartifactIdjstl/artifactIdversion${jstl.version}/version/dependencydependencygroupIdtaglibs/groupIdartifactIdstandard/artifactIdversion${standard.version}/version/dependencydependencygroupIdorg.apache.tomcat/groupIdartifactIdtomcat-jsp-api/artifactIdversion${tomcat-jsp-api.version}/version/dependencydependencygroupIdcommons-fileupload/groupIdartifactIdcommons-fileupload/artifactIdversion${commons-fileupload.version}/version/dependencydependencygroupIdorg.hibernate/groupIdartifactIdhibernate-validator/artifactIdversion${hibernate-validator.version}/version/dependency!--shiro依赖--dependencygroupIdorg.apache.shiro/groupIdartifactIdshiro-core/artifactIdversion${shiro.version}/version/dependencydependencygroupIdorg.apache.shiro/groupIdartifactIdshiro-web/artifactIdversion${shiro.version}/version/dependencydependencygroupIdorg.apache.shiro/groupIdartifactIdshiro-spring/artifactIdversion${shiro.version}/version/dependency/dependenciesbuildresources!--解决mybatis-generator-maven-plugin运行时没有将XxxMapper.xml文件放入target文件夹的问题--resourcedirectorysrc/main/java/directoryincludesinclude**/*.xml/include/includes/resource!--解决mybatis-generator-maven-plugin运行时没有将jdbc.properites文件放入target文件夹的问题--resourcedirectorysrc/main/resources/directoryincludesinclude*.properties/includeinclude*.xml/include/includes/resource/resourcespluginsplugingroupIdorg.apache.maven.plugins/groupIdartifactIdmaven-compiler-plugin/artifactIdversion${maven.compiler.plugin.version}/versionconfigurationsource${maven.compiler.source}/sourcetarget${maven.compiler.target}/targetencoding${project.build.sourceEncoding}/encoding/configuration/pluginplugingroupIdorg.mybatis.generator/groupIdartifactIdmybatis-generator-maven-plugin/artifactIdversion1.3.2/versiondependencies!--使用Mybatis-generator插件不能使用太高版本的mysql驱动 --dependencygroupIdmysql/groupIdartifactIdmysql-connector-java/artifactIdversion${mysql.version}/version/dependency/dependenciesconfigurationoverwritetrue/overwrite/configuration/pluginpluginartifactIdmaven-clean-plugin/artifactIdversion3.1.0/version/plugin!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging --pluginartifactIdmaven-resources-plugin/artifactIdversion3.0.2/version/pluginpluginartifactIdmaven-compiler-plugin/artifactIdversion3.8.0/version/pluginpluginartifactIdmaven-surefire-plugin/artifactIdversion2.22.1/version/pluginpluginartifactIdmaven-war-plugin/artifactIdversion3.2.2/version/pluginpluginartifactIdmaven-install-plugin/artifactIdversion2.5.2/version/pluginpluginartifactIdmaven-deploy-plugin/artifactIdversion2.8.2/version/plugin/plugins/build
/project二.添加框架的配置文件 generatorConfig.xml 这个文件用于生成Java代码。它包含了数据库连接信息、Java类型转换设置、JavaBean生成设置、SQL映射文件生成设置以及生成的表的结构等信息。通过这个配置文件MyBatis Generator可以根据这些配置信息自动生成相应的Java实体类、Mapper接口以及XML映射文件 ?xml version1.0 encodingUTF-8 ?
!DOCTYPE generatorConfiguration PUBLIC -//mybatis.org//DTD MyBatis Generator Configuration 1.0//ENhttp://mybatis.org/dtd/mybatis-generator-config_1_0.dtd
generatorConfiguration!-- 引入配置文件 --properties resourcejdbc.properties/!--指定数据库jdbc驱动jar包的位置--classPathEntry locationD:\tools\apache-maven-3.5.0-bin\mvn_localRepositor\mysql\mysql-connector-java\5.1.44\\mysql-connector-java-5.1.44.jar/!-- 一个数据库一个context --context idinfoGuardian!-- 注释 --commentGeneratorproperty namesuppressAllComments valuetrue/!-- 是否取消注释 --property namesuppressDate valuetrue/ !-- 是否生成注释代时间戳 --/commentGenerator!-- jdbc连接 --jdbcConnection driverClass${jdbc.driver}connectionURL${jdbc.url} userId${jdbc.username} password${jdbc.password}/!-- 类型转换 --javaTypeResolver!-- 是否使用bigDecimal false可自动转化以下类型Long, Integer, Short, etc. --property nameforceBigDecimals valuefalse//javaTypeResolver!-- 01 指定javaBean生成的位置 --!-- targetPackage指定生成的model生成所在的包名 --!-- targetProject指定在该项目下所在的路径 --javaModelGenerator targetPackagecom.wh.modeltargetProjectsrc/main/java!-- 是否允许子包即targetPackage.schemaName.tableName --property nameenableSubPackages valuefalse/!-- 是否对model添加构造函数 --property nameconstructorBased valuetrue/!-- 是否针对string类型的字段在set的时候进行trim调用 --property nametrimStrings valuefalse/!-- 建立的Model对象是否 不可改变 即生成的Model对象不会有 setter方法只有构造方法 --property nameimmutable valuefalse//javaModelGenerator!-- 02 指定sql映射文件生成的位置 --sqlMapGenerator targetPackagecom.wh.mappertargetProjectsrc/main/java!-- 是否允许子包即targetPackage.schemaName.tableName --property nameenableSubPackages valuefalse//sqlMapGenerator!-- 03 生成XxxMapper接口 --!-- typeANNOTATEDMAPPER,生成Java Model 和基于注解的Mapper对象 --!-- typeMIXEDMAPPER,生成基于注解的Java Model 和相应的Mapper对象 --!-- typeXMLMAPPER,生成SQLMap XML文件和独立的Mapper接口 --javaClientGenerator targetPackagecom.wh.mappertargetProjectsrc/main/java typeXMLMAPPER!-- 是否在当前路径下新加一层schema,false路径com.oop.eksp.user.model true:com.oop.eksp.user.model.[schemaName] --property nameenableSubPackages valuefalse//javaClientGeneratortable schema tableNamet_mvc_cat domainObjectNameCatenableCountByExamplefalse enableDeleteByExamplefalseenableSelectByExamplefalse enableUpdateByExamplefalse/table/context
/generatorConfiguration jdbc.properties 这个配置文件是用来配置Java应用程序与MySQL数据库的连接信息的 jdbc.drivercom.mysql.jdbc.Driver
jdbc.urljdbc:mysql://localhost:3306/mybatis_ssm?useUnicodetruecharacterEncodingUTF-8
jdbc.usernameroot
jdbc.password123456 log4j2.xml 这个配置文件是用于配置Log4j2的日志输出规则。Log4j2是一个用于Java应用程序的日志框架它提供了灵活的日志记录功能 ?xml version1.0 encodingUTF-8?!-- status : 指定log4j本身的打印日志的级别.ALL Trace DEBUG INFO WARN ERROR FATAL OFF。 monitorInterval : 用于指定log4j自动重新配置的监测间隔时间单位是s,最小是5s. --
Configuration statusWARN monitorInterval30Properties!-- 配置日志文件输出目录 ${sys:user.home} --Property nameLOG_HOME/root/workspace/lucenedemo/logs/Propertyproperty nameERROR_LOG_FILE_NAME/root/workspace/lucenedemo/logs/error/propertyproperty nameWARN_LOG_FILE_NAME/root/workspace/lucenedemo/logs/warn/propertyproperty namePATTERN%d{yyyy-MM-dd HH:mm:ss.SSS} [%t-%L] %-5level %logger{36} - %msg%n/property/PropertiesAppenders!--这个输出控制台的配置 --Console nameConsole targetSYSTEM_OUT!-- 控制台只输出level及以上级别的信息(onMatch),其他的直接拒绝(onMismatch) --ThresholdFilter leveltrace onMatchACCEPTonMismatchDENY /!-- 输出日志的格式 --!-- %d{yyyy-MM-dd HH:mm:ss, SSS} : 日志生产时间 %p : 日志输出格式 %c : logger的名称%m : 日志内容即 logger.info(message) %n : 换行符 %C : Java类名 %L : 日志输出所在行数 %M: 日志输出所在方法名 hostName : 本地机器名 hostAddress : 本地ip地址 --PatternLayout pattern${PATTERN} //Console!--文件会打印出所有信息这个log每次运行程序会自动清空由append属性决定这个也挺有用的适合临时测试用 --!--append为TRUE表示消息增加到指定文件中false表示消息覆盖指定的文件内容默认值是true --File namelog fileNamelogs/test.log appendfalsePatternLayoutpattern%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n //File!-- 这个会打印出所有的info及以下级别的信息每次大小超过size 则这size大小的日志会自动存入按年份-月份建立的文件夹下面并进行压缩作为存档 --RollingFile nameRollingFileInfo fileName${LOG_HOME}/info.logfilePattern${LOG_HOME}/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log!--控制台只输出level及以上级别的信息onMatch其他的直接拒绝onMismatch --ThresholdFilter levelinfo onMatchACCEPTonMismatchDENY /PatternLayoutpattern%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n /Policies!-- 基于时间的滚动策略interval属性用来指定多久滚动一次默认是1 hour。 modulatetrue用来调整时间比如现在是早上3aminterval是4那么第一次滚动是在4am接着是8am12am...而不是7am. --!-- 关键点在于 filePattern后的日期格式以及TimeBasedTriggeringPolicy的interval 日期格式精确到哪一位interval也精确到哪一个单位 --!-- log4j2的按天分日志文件 : info-%d{yyyy-MM-dd}-%i.log --TimeBasedTriggeringPolicy interval1modulatetrue /!-- SizeBasedTriggeringPolicy:Policies子节点 基于指定文件大小的滚动策略size属性用来定义每个日志文件的大小. --!-- SizeBasedTriggeringPolicy size2 kB / --/Policies/RollingFileRollingFile nameRollingFileWarn fileName${WARN_LOG_FILE_NAME}/warn.logfilePattern${WARN_LOG_FILE_NAME}/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.logThresholdFilter levelwarn onMatchACCEPTonMismatchDENY /PatternLayoutpattern%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n /PoliciesTimeBasedTriggeringPolicy /SizeBasedTriggeringPolicy size2 kB //Policies!-- DefaultRolloverStrategy属性如不设置则默认为最多同一文件夹下7个文件这里设置了20 --DefaultRolloverStrategy max20 //RollingFileRollingFile nameRollingFileError fileName${ERROR_LOG_FILE_NAME}/error.logfilePattern${ERROR_LOG_FILE_NAME}/$${date:yyyy-MM}/error-%d{yyyy-MM-dd-HH-mm}-%i.logThresholdFilter levelerror onMatchACCEPTonMismatchDENY /PatternLayoutpattern%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n /Policies!-- log4j2的按分钟 分日志文件 : warn-%d{yyyy-MM-dd-HH-mm}-%i.log --TimeBasedTriggeringPolicy interval1modulatetrue /!-- SizeBasedTriggeringPolicy size10 MB / --/Policies/RollingFile/Appenders!--然后定义logger只有定义了logger并引入的appenderappender才会生效 --Loggers!--过滤掉spring和mybatis的一些无用的DEBUG信息 --logger nameorg.springframework levelINFO/loggerlogger nameorg.mybatis levelINFO/logger!-- 第三方日志系统 --logger nameorg.springframework levelERROR /logger nameorg.hibernate levelERROR /logger nameorg.apache.struts2 levelERROR /logger namecom.opensymphony.xwork2 levelERROR /logger nameorg.jboss levelERROR /!-- 配置日志的根节点 --root levelallappender-ref refConsole /appender-ref refRollingFileInfo /appender-ref refRollingFileWarn /appender-ref refRollingFileError //root/Loggers/Configuration Spring-context.xml 这是一个Spring框架的配置文件用于定义和管理Spring容器中的Bean。它使用XML格式来描述Bean的配置信息和依赖关系。通过这个配置文件Spring框架可以自动扫描并加载应用程序中的Bean定义并根据这些配置信息创建和管理Bean的实例。这样可以实现依赖注入、面向切面编程等特性 ?xml version1.0 encodingUTF-8?
beans xmlnshttp://www.springframework.org/schema/beansxmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdimport resourceclasspath:SpringMVCzy.xml/import/beans Spring-mvc.xml 这个配置文件是Spring MVC框架的XML配置文件用于配置Spring MVC的各种组件和属性其中做了这些操作 扫描com.wh包及其子包下的控制器类将它们注册为Spring MVC的控制器开启注解驱动的Spring MVC功能这意味着可以使用基于注解的方式进行请求映射、数据绑定等操作配置了一个视图解析器ViewResolver用于将控制器返回的逻辑视图名解析为实际的视图对象。这里使用了JSP视图技术并指定了JSP文件存放在/WEB-INF/jsp/目录下注释掉了一些资源处理器的配置这些配置可以用于处理静态资源如图片、样式表、JavaScript文件等的请求 ?xml version1.0 encodingUTF-8?
beans xmlnshttp://www.springframework.org/schema/beansxmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexmlns:contexthttp://www.springframework.org/schema/contextxmlns:mvchttp://www.springframework.org/schema/mvcxmlns:aophttp://www.springframework.org/schema/aopxsi:schemaLocationhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd!--1) 扫描com.zking.zf及子子孙孙包下的控制器(扫描范围过大耗时)--context:component-scan base-packagecom.wh/!--2) 此标签默认注册DefaultAnnotationHandlerMapping和AnnotationMethodHandlerAdapter --mvc:annotation-driven /!--3) 创建ViewResolver视图解析器 --bean classorg.springframework.web.servlet.view.InternalResourceViewResolver!-- viewClass需要在pom中引入两个包standard.jar and jstl.jar --property nameviewClassvalueorg.springframework.web.servlet.view.JstlView/propertyproperty nameprefix value/WEB-INF/jsp//property namesuffix value.jsp//bean!--4) 单独处理图片、样式、js等资源 --!-- mvc:resources location/static/ mapping/static/**/--!-- mvc:resources location/css/ mapping/css/**/mvc:resources location/js/ mapping/js/**/mvc:resources locationWEB-INF/images/ mapping/images/**/--mvc:resources location/common/ mapping/jsp/**/aop:aspectj-autoproxy/
/beans SpringMVCzy.xml 这是一个Spring框架的XML配置文件用于配置Spring应用程序的各种组件和属性。其中做了这些操作 注解式开发通过context:annotation-config/启用注解驱动的配置允许使用注解来定义和管理Bean组件扫描通过context:component-scan标签指定要扫描的包路径以自动发现并注册Bean属性占位符通过context:property-placeholder标签指定属性文件的位置用于从外部属性文件中加载配置信息数据源配置通过bean iddataSource标签配置数据库连接池包括驱动程序类名、URL、用户名、密码等属性MyBatis整合通过bean idsqlSessionFactory和bean classorg.mybatis.spring.mapper.MapperScannerConfigurer配置MyBatis的SqlSessionFactory和Mapper接口扫描器实现自动扫描和注册Mapper接口事务管理通过bean idtransactionManager和tx:annotation-driven配置事务管理器将DataSource与事务管理器关联起来AOP支持通过aop:aspectj-autoproxy/启用AspectJ自动代理支持面向切面编程 ?xml version1.0 encodingUTF-8?
beans xmlnshttp://www.springframework.org/schema/beansxmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexmlns:contexthttp://www.springframework.org/schema/context xmlns:txhttp://www.springframework.org/schema/txxmlns:aophttp://www.springframework.org/schema/aopxsi:schemaLocationhttp://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/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd!--1. 注解式开发 --!-- 注解驱动 --context:annotation-config/!-- 用注解方式注入bean并指定查找范围com.javaxl.ssm及子子孙孙包--context:component-scan base-packagecom.wh/context:property-placeholder locationclasspath:jdbc.properties/bean iddataSource classorg.apache.commons.dbcp2.BasicDataSourcedestroy-methodcloseproperty namedriverClassName value${jdbc.driver}/property nameurl value${jdbc.url}/property nameusername value${jdbc.username}/property namepassword value${jdbc.password}/!--初始连接数--property nameinitialSize value10/!--最大活动连接数--property namemaxTotal value100/!--最大空闲连接数--property namemaxIdle value50/!--最小空闲连接数--property nameminIdle value10/!--设置为-1时如果没有可用连接连接池会一直无限期等待直到获取到连接为止。--!--如果设置为N毫秒则连接池会等待N毫秒等待不到则抛出异常--property namemaxWaitMillis value-1//bean!--4. spring和MyBatis整合 --!--1) 创建sqlSessionFactory--bean idsqlSessionFactory classorg.mybatis.spring.SqlSessionFactoryBean!-- 指定数据源 --property namedataSource refdataSource/!-- 自动扫描XxxMapping.xml文件**任意路径 --property namemapperLocations valueclasspath*:com/wh/**/mapper/*.xml/!-- 指定别名 --property nametypeAliasesPackage valuecom/wh/**/model/!--配置pagehelper插件--property namepluginsarraybean classcom.github.pagehelper.PageInterceptorproperty namepropertiesvaluehelperDialectmysql/value/property/bean/array/property/bean!--2) 自动扫描com/javaxl/ssm/**/mapper下的所有XxxMapper接口(其实就是DAO接口)并实现这些接口--!-- 即可直接在程序中使用dao接口不用再获取sqlsession对象--bean classorg.mybatis.spring.mapper.MapperScannerConfigurer!--basePackage 属性是映射器接口文件的包路径。--!--你可以使用分号或逗号 作为分隔符设置多于一个的包路径--property namebasePackage valuecom/wh/**/mapper/property namesqlSessionFactoryBeanName valuesqlSessionFactory//beanbean idtransactionManager classorg.springframework.jdbc.datasource.DataSourceTransactionManagerproperty namedataSource refdataSource //beantx:annotation-driven transaction-managertransactionManager /aop:aspectj-autoproxy/
/beans 三.工具类 PagBean package com.wh.util;import java.util.HashMap;
import java.util.Map;import javax.servlet.http.HttpServletRequest;/*** 分页工具类**/
public class PageBean {private int page 1;// 页码private int rows 10;// 页大小private int total 0;// 总记录数private boolean pagination true;// 是否分页private String url; //保存上一次请求的URLprivate MapString,String[] paramMap new HashMap();// 保存上一次请求的参数/*** 初始化pagebean的保存上一次请求的重要参数* param req*/public void setRequest(HttpServletRequest req) {
// 1.1 需要保存上一次请求的URLthis.setUrl(req.getRequestURL().toString());
// 1.2 需要保存上一次请求的参数 bname、pricethis.setParamMap(req.getParameterMap());
// 1.3 需要保存上一次请求的分页设置 paginationthis.setPagination(req.getParameter(pagination));
// 1.4 需要保存上一次请求的展示条目数this.setRows(req.getParameter(rows));
// 1.5 初始化请求的页码 pagethis.setPage(req.getParameter(page));}public void setPage(String page) {if(StringUtils.isNotBlank(page))this.setPage(Integer.valueOf(page));}public void setRows(String rows) {if(StringUtils.isNotBlank(rows))this.setRows(Integer.valueOf(rows));}public void setPagination(String pagination) {
// 只有在前台jsp填写了paginationfalse才代表不分页if(StringUtils.isNotBlank(pagination))this.setPagination(!false.equals(pagination));}public String getUrl() {return url;}public void setUrl(String url) {this.url url;}public MapString, String[] getParamMap() {return paramMap;}public void setParamMap(MapString, String[] paramMap) {this.paramMap paramMap;}public PageBean() {super();}public int getPage() {return page;}public void setPage(int page) {this.page page;}public int getRows() {return rows;}public void setRows(int rows) {this.rows rows;}public int getTotal() {return total;}public void setTotal(int total) {this.total total;}public void setTotal(String total) {this.total Integer.parseInt(total);}public boolean isPagination() {return pagination;}public void setPagination(boolean pagination) {this.pagination pagination;}/*** 获得起始记录的下标* * return*/public int getStartIndex() {return (this.page - 1) * this.rows;}/*** 最大页* return*/public int maxPage() {
// total % rows 0 ? total / rows : total / rows 1return this.total % this.rows 0 ? this.total / this.rows : this.total / this.rows 1;}/*** 下一页* return*/public int nextPage() {
// 如果当前页小于最大页那就下一页为当前页1如果不小于说明当前页就是最大页那就无需1return this.page this.maxPage() ? this.page 1 : this.page;}/*** 上一页* return*/public int previousPage() {return this.page 1 ? this.page - 1 : this.page;}Overridepublic String toString() {return PageBean [page page , rows rows , total total , pagination pagination ];}}PageTag package com.wh.tag;import com.wh.util.PageBean;import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyTagSupport;
import java.io.IOException;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;public class PageTag extends BodyTagSupport{private PageBean pageBean;// 包含了所有分页相关的元素public PageBean getPageBean() {return pageBean;}public void setPageBean(PageBean pageBean) {this.pageBean pageBean;}Overridepublic int doStartTag() throws JspException {
// 没有标签体要输出内容JspWriter out pageContext.getOut();try {out.print(toHTML());} catch (IOException e) {e.printStackTrace();}return super.doStartTag();}private String toHTML() {StringBuffer sb new StringBuffer();
// 隐藏的form表单---这个就是上一次请求下次重新发的奥义所在
// 上一次请求的URLsb.append(form actionpageBean.getUrl() idpageBeanForm methodpost);sb.append( input typehidden namepage);
// 上一次请求的参数MapString, String[] paramMap pageBean.getParamMap();if(paramMap ! null paramMap.size() 0) {SetEntryString, String[] entrySet paramMap.entrySet();for (EntryString, String[] entry : entrySet) {
// 参数名String key entry.getKey();
// 参数值for (String value : entry.getValue()) {
// 上一次请求的参数再一次组装成了新的Form表单
// 注意page参数每次都会提交我们需要避免if(!page.equals(key)) {sb.append( input typehidden namekey valuevalue );}}}}sb.append(/form);// 分页条sb.append(ul classpagination justify-content-center);sb.append( li classpage-item (pageBean.getPage() 1 ? disabled : )a classpage-link);sb.append( hrefjavascript:gotoPage(1)首页/a/li);sb.append( li classpage-item (pageBean.getPage() 1 ? disabled : )a classpage-link);sb.append( hrefjavascript:gotoPage(pageBean.previousPage())lt;/a/li);// less than 小于号
// sb.append( li classpage-itema classpage-link href#1/a/li);
// sb.append( li classpage-itema classpage-link href#2/a/li);sb.append( li classpage-item activea classpage-link href#pageBean.getPage()/a/li);sb.append( li classpage-item (pageBean.getPage() pageBean.maxPage() ? disabled : )a classpage-link hrefjavascript:gotoPage(pageBean.nextPage())gt;/a/li);sb.append( li classpage-item (pageBean.getPage() pageBean.maxPage() ? disabled : )a classpage-link hrefjavascript:gotoPage(pageBean.maxPage())尾页/a/li);sb.append( li classpage-item go-inputb到第/binput classpage-link);sb.append( typetext idskipPage name /b页/b/li);sb.append( li classpage-item goa classpage-link);sb.append( hrefjavascript:skipPage()确定/a/li);sb.append( li classpage-itemb共pageBean.getTotal()条/b/li);sb.append(/ul);// 分页执行的JS代码sb.append(script typetext/javascript);sb.append( function gotoPage(page) {);sb.append( document.getElementById(pageBeanForm).page.value page;);sb.append( document.getElementById(pageBeanForm).submit(););sb.append( });sb.append( function skipPage() {);sb.append( var page document.getElementById(skipPage).value;);sb.append( if (!page || isNaN(page) || parseInt(page) 1 || parseInt(page) pageBean.maxPage()) {);sb.append( alert(请输入1~pageBean.maxPage()的数字););sb.append( return;);sb.append( });sb.append( gotoPage(page););sb.append( });sb.append(/script);return sb.toString();}
}StringUtils package com.wh.util;public class StringUtils {// 私有的构造方法保护此类不能在外部实例化private StringUtils() {}/*** 如果字符串等于null或去空格后等于则返回true否则返回false* * param s* return*/public static boolean isBlank(String s) {boolean b false;if (null s || s.trim().equals()) {b true;}return b;}/*** 如果字符串不等于null或去空格后不等于则返回true否则返回false* * param s* return*/public static boolean isNotBlank(String s) {return !isBlank(s);}}四.逆向生成代码 1.发布项目 2.生成代码 五.编写后台代码 biz package com.wh.biz;import com.wh.model.Cat;
import com.wh.util.PageBean;import java.util.List;
public interface CatBiz {int deleteByPrimaryKey(Integer cid);int insert(Cat record);int insertSelective(Cat record);ListCat selectByPrimaryKey(Integer cid);ListCat selectLikePager(Cat cat,PageBean pageBean);int updateByPrimaryKeySelective(Cat record);int updateByPrimaryKey(Cat record);
} package com.wh.biz;import com.wh.mapper.CatMapper;
import com.wh.model.Cat;
import com.wh.util.PageBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;/*** author 王辉* site www.shihuihuila.com* create 2023-09-08 18:05*/
Service
public class CatBizImpl implements CatBiz {Autowiredprivate CatMapper catBiz;Overridepublic int deleteByPrimaryKey(Integer cid) {return catBiz.deleteByPrimaryKey(cid);}Overridepublic int insert(Cat record) {return catBiz.insert(record);}Overridepublic int insertSelective(Cat record) {return catBiz.insertSelective(record);}Overridepublic ListCat selectByPrimaryKey(Integer cid) {return catBiz.selectByPrimaryKey(cid);}Overridepublic ListCat selectLikePager(Cat cat, PageBean pageBean) {return catBiz.selectLikePager(cat);}Overridepublic int updateByPrimaryKeySelective(Cat record) {return catBiz.updateByPrimaryKeySelective(record);}Overridepublic int updateByPrimaryKey(Cat record) {return catBiz.updateByPrimaryKey(record);}
}web package com.wh.web;import com.wh.biz.CatBiz;
import com.wh.model.Cat;
import com.wh.util.PageBean;
import lombok.extern.slf4j.Slf4j;
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 javax.servlet.http.HttpServletRequest;
import java.util.List;/*** author 王辉* site www.shihuihuila.com* create 2023-09-08 18:08*/
Controller
RequestMapping(/smvc3)
Slf4j
public class CatController {Autowiredprivate CatBiz catBiz;//增RequestMapping(/add)public String add(Cat cat){catBiz.insertSelective(cat);return redirect:list;}// 删RequestMapping(/del)public String del(Cat cat){catBiz.deleteByPrimaryKey(cat.getCid());return redirect:list;}// 改RequestMapping(/upd)public String upd(Cat cat){catBiz.updateByPrimaryKeySelective(cat);return redirect:list;}// 查RequestMapping(/list)public String list(Cat cat, HttpServletRequest request){PageBean pageBeannew PageBean();ListCat cats catBiz.selectLikePager(cat, pageBean);request.setAttribute(list,cats);request.setAttribute(pageBean,pageBean);return index;}//数据回显RequestMapping(/preSave)public String preSave(Cat cat, Model model){if(cat!null cat.getCid()!null){ListCat cats catBiz.selectByPrimaryKey(cat.getCid());model.addAttribute(c,cats.get(0));}return edit;}}六.前台代码编写 index.jsp % page languagejava contentTypetext/html; charsetUTF-8pageEncodingUTF-8%
% taglib urihttp://jsp.veryedu.cn prefixz%
% taglib urihttp://java.sun.com/jsp/jstl/core prefixc%!DOCTYPE html PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN http://www.w3.org/TR/html4/loose.dtd
html
headmeta http-equivContent-Type contenttext/html; charsetUTF-8linkhrefhttps://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.cssrelstylesheetscriptsrchttps://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.5.0/js/bootstrap.js/scripttitle博客列表/titlestyle typetext/css.page-item input {padding: 0;width: 40px;height: 100%;text-align: center;margin: 0 6px;}.page-item input, .page-item b {line-height: 38px;float: left;font-weight: 400;}.page-item.go-input {margin: 0 10px;}/style
/head
body
form classform-inlineaction${pageContext.request.contextPath }/smvc3/list methodpostdiv classform-group mb-2input typetext classform-control-plaintext namecnameplaceholder请输入书籍名称!-- input namerows value20 typehidden --!-- 不想分页 --input namepagination valuefalse typehidden/divbutton typesubmit classbtn btn-primary mb-2查询/buttona classbtn btn-primary mb-2 href${pageContext.request.contextPath }/smvc3/preSave新增/a
/formtable classtable table-striped theadtrth scopecol猫咪ID/thth scopecol猫咪名字/thth scopecol猫咪年龄/thth scopecol操作/th/tr/theadtbodyc:forEach varb items${list }trtd${b.cid }/tdtd${b.cname }/tdtd${b.age }/tdtda href${pageContext.request.contextPath }/smvc3/preSave?cid${b.cid}修改/aa href${pageContext.request.contextPath }/smvc3/del?cid${b.cid}删除/a/td/tr/c:forEach/tbody
/table
!-- 这一行代码就相当于前面分页需求前端的几十行了 --
z:page pageBean${pageBean }/z:page/body
/html edit.jsp % page languagejava contentTypetext/html; charsetUTF-8pageEncodingUTF-8%
!DOCTYPE html PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN http://www.w3.org/TR/html4/loose.dtd
html
headmeta http-equivContent-Type contenttext/html; charsetUTF-8title编辑界面/title
/head
body
form action${pageContext.request.contextPath }/${empty c ? smvc3/add : smvc3/upd} methodpostc:forEach varb items${c }猫咪id:input typetext namecid value${b.cid }br猫咪姓名:input typetext namecname value${b.cname }br猫咪年龄:input typetext nameage value${b.age }brinput typesubmit/c:forEach
/form
/body
/html 好啦今天的分享就到这了希望能够帮到你呢
