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前言#xff1a;
1.总体思路#xff1a;
2.前期准备
3.前台页面 前言#xff1a; 我们今天来学习研究SpringMVC的增删改查#xff0c;希望这篇博客能够帮助正在学习#xff0c;工作的你们#xff01;#xff01;#xff01; 1.总体思路#xff1a; 首先我们得… 目录
前言
1.总体思路
2.前期准备
3.前台页面 前言 我们今天来学习研究SpringMVC的增删改查希望这篇博客能够帮助正在学习工作的你们 1.总体思路 首先我们得有SpringMVC基础http://t.csdn.cn/IODehhttp://t.csdn.cn/IODehSpringMVC常用注解、参数传递、返回值 http://t.csdn.cn/C2XPOhttp://t.csdn.cn/C2XPO才能理解掌握到今天的SpringMVC的增删改查的案例。 步骤 1.通过maven插件逆向生成对应的modelmapper.xml , mapper.java) 2.biz层 3.web层这里我们使用自定义mvc的分页标签pom依赖 2.前期准备
2.1.建立表t_mvc_student) 2.2修改generatorConfig.xml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://apache-maven-3.5.0//mvn-repository//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.lya.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.lya.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.lya.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//javaClientGenerator!-- 配置表信息 --!-- schema即为数据库名 --!-- tableName为对应的数据库表 --!-- domainObjectName是要生成的实体类 --!-- enable*ByExample是否生成 example类 --!--table schema tableNamet_book domainObjectNameBook--!--enableCountByExamplefalse enableDeleteByExamplefalse--!--enableSelectByExamplefalse enableUpdateByExamplefalse--!--lt;!ndash; 忽略列不生成bean 字段 ndash;gt;--!--lt;!ndash; ignoreColumn columnFRED / ndash;gt;--!--lt;!ndash; 指定列的java数据类型 ndash;gt;--!--lt;!ndash; columnOverride columnLONG_VARCHAR_FIELD jdbcTypeVARCHAR / ndash;gt;--!--/table--table schemamybatis_ssm tableNamet_mvc_student domainObjectNameClazzenableCountByExamplefalse enableDeleteByExamplefalseenableSelectByExamplefalse enableUpdateByExamplefalse!-- 忽略列不生成bean 字段 --!-- ignoreColumn columnFRED / --!-- 指定列的java数据类型 --!-- columnOverride columnLONG_VARCHAR_FIELD jdbcTypeVARCHAR / --/table/context
/generatorConfigurationpom.xml
?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/groupIdartifactIdspringmvc01/artifactIdversion1.0-SNAPSHOT/versionpackagingwar/packagingnamespringmvc01 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${shiro.version}/version/dependency/dependenciesbuildfinalNamespringmvc01/finalNameresources!--解决mybatis-generator-maven-plugin运行时没有将XxxMapper.xml文件放入target文件夹的问题--resourcedirectorysrc/main/java/directoryincludesinclude**/*.xml/include/includes/resource!--解决mybatis-generator-maven-plugin运行时没有将jdbc.properites文件放入target文件夹的问题--resourcedirectorysrc/main/resources/directoryincludesinclude*.properties/includeinclude*.xml/include/includes/resource/resourcespluginsplugingroupIdorg.apache.maven.plugins/groupIdartifactIdmaven-compiler-plugin/artifactIdversion${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
ClazzMapper.xml
?xml version1.0 encodingUTF-8 ?
!DOCTYPE mapper PUBLIC -//mybatis.org//DTD Mapper 3.0//EN http://mybatis.org/dtd/mybatis-3-mapper.dtd
mapper namespacecom.lyazyssm.mapper.ClazzMapper resultMap idBaseResultMap typecom.lyazyssm.model.Clazz constructor idArg columnsid jdbcTypeINTEGER javaTypejava.lang.Integer /arg columnsname jdbcTypeVARCHAR javaTypejava.lang.String /arg columnsage jdbcTypeINTEGER javaTypejava.lang.Integer /arg columnsinfo jdbcTypeVARCHAR javaTypejava.lang.String //constructor/resultMapsql idBase_Column_List sid, sname, sage, sinfo/sqlselect idselectByPrimaryKey resultMapBaseResultMap parameterTypejava.lang.Integer select include refidBase_Column_List /from t_mvc_studentwhere sid #{sid,jdbcTypeINTEGER}/selectselect idlistPager parameterTypecom.lyazyssm.model.Clazz resultTypecom.lyazyssm.model.Clazzselectinclude refidBase_Column_List /from t_mvc_studentwhereif testsname ! null and sname ! sname like CONCAT(%,#{sname},%)/ifif testsid ! null and sid ! sid #{sid}/if/where/selectdelete iddeleteByPrimaryKey parameterTypejava.lang.Integer delete from t_mvc_studentwhere sid #{sid,jdbcTypeINTEGER}/deleteinsert idinsert parameterTypecom.lyazyssm.model.Clazz insert into t_mvc_student (sid, sname, sage, sinfo)values (#{sid,jdbcTypeINTEGER}, #{sname,jdbcTypeVARCHAR}, #{sage,jdbcTypeINTEGER}, #{sinfo,jdbcTypeVARCHAR})/insertinsert idinsertSelective parameterTypecom.lyazyssm.model.Clazz insert into t_mvc_studenttrim prefix( suffix) suffixOverrides, if testsid ! null sid,/ifif testsname ! null sname,/ifif testsage ! null sage,/ifif testsinfo ! null sinfo,/if/trimtrim prefixvalues ( suffix) suffixOverrides, if testsid ! null #{sid,jdbcTypeINTEGER},/ifif testsname ! null #{sname,jdbcTypeVARCHAR},/ifif testsage ! null #{sage,jdbcTypeINTEGER},/ifif testsinfo ! null #{sinfo,jdbcTypeVARCHAR},/if/trim/insertupdate idupdateByPrimaryKeySelective parameterTypecom.lyazyssm.model.Clazz update t_mvc_studentset if testsname ! null sname #{sname,jdbcTypeVARCHAR},/ifif testsage ! null sage #{sage,jdbcTypeINTEGER},/ifif testsinfo ! null sinfo #{sinfo,jdbcTypeVARCHAR},/if/setwhere sid #{sid,jdbcTypeINTEGER}/updateupdate idupdateByPrimaryKey parameterTypecom.lyazyssm.model.Clazz update t_mvc_studentset sname #{sname,jdbcTypeVARCHAR},sage #{sage,jdbcTypeINTEGER},sinfo #{sinfo,jdbcTypeVARCHAR}where sid #{sid,jdbcTypeINTEGER}/update
/mapper
ClazzMapper
package com.lyazyssm.mapper;import com.lyazyssm.model.Clazz;
import com.lyazyssm.util.PageBean;
import org.springframework.stereotype.Repository;import java.util.List;Repository
public interface ClazzMapper {int deleteByPrimaryKey(Integer sid);int insert(Clazz record);int insertSelective(Clazz record);Clazz selectByPrimaryKey(Integer sid);int updateByPrimaryKeySelective(Clazz record);int updateByPrimaryKey(Clazz record);ListClazz listPager(Clazz clazz, PageBean pageBean);
}
PageTag
package com.lyazyssm.tag;import java.io.IOException;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyTagSupport;import com.lyazyssm.util.PageBean;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();}
}applicationContext.xml
?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.xsdimport resourceapplicationContext-mybatis.xml/import
/beans
applicationContext-mybatis.xml
?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.lyazyssm/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/lyazyssm/**/mapper/*.xml/!-- 指定别名 --property nametypeAliasesPackage valuecom/javaxl/ssm/**/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/zq/ssm/**/mapper/property namesqlSessionFactoryBeanName valuesqlSessionFactory//beanbean idtransactionManager classorg.springframework.jdbc.datasource.DataSourceTransactionManagerproperty namedataSource refdataSource //beantx:annotation-driven transaction-managertransactionManager /aop:aspectj-autoproxy/
/beans
jdbc.properties
jdbc.drivercom.mysql.jdbc.Driver
jdbc.urljdbc:mysql://localhost:3306/mybatis_ssm?useUnicodetruecharacterEncodingUTF-8
jdbc.usernameroot
jdbc.password123456log4j2.xml
?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
web.xml
?xml version1.0 encodingUTF-8?
web-app xmlnshttp://xmlns.jcp.org/xml/ns/javaeexmlns:xsihttp://www.w3.org/2001/XMLSchema-instancexsi:schemaLocationhttp://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsdversion3.1display-nameArchetype Created Web Application/display-name!-- Spring和web项目集成start --!-- spring上下文配置文件 --context-paramparam-namecontextConfigLocation/param-nameparam-valueclasspath:applicationContext.xml/param-value/context-param!-- 读取Spring上下文的监听器 --listenerlistener-classorg.springframework.web.context.ContextLoaderListener/listener-class/listener!-- Spring和web项目集成end --!-- 防止Spring内存溢出监听器 --listenerlistener-classorg.springframework.web.util.IntrospectorCleanupListener/listener-class/listener!-- 中文乱码处理 --filterfilter-nameencodingFilter/filter-namefilter-classorg.springframework.web.filter.CharacterEncodingFilter/filter-classasync-supportedtrue/async-supportedinit-paramparam-nameencoding/param-nameparam-valueUTF-8/param-value/init-param/filterfilter-mappingfilter-nameencodingFilter/filter-nameurl-pattern/*/url-pattern/filter-mapping!-- Spring MVC servlet --servletservlet-nameSpringMVC/servlet-nameservlet-classorg.springframework.web.servlet.DispatcherServlet/servlet-class!--此参数可以不配置默认值为/WEB-INF/springmvc-servlet.xml--init-paramparam-namecontextConfigLocation/param-nameparam-value/WEB-INF/spring-mvc.xml/param-value/init-paramload-on-startup1/load-on-startup!--web.xml 3.0的新特性是否支持异步--async-supportedtrue/async-supported/servletservlet-mappingservlet-nameSpringMVC/servlet-nameurl-pattern//url-pattern/servlet-mapping
/web-app
3.前台页面 list.jsp
%--Created by IntelliJ IDEA.User: 微微Date: 2023/9/8Time: 17:09To change this template use File | Settings | File Templates.
--%% 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/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${pageContext.request.contextPath }/clz/list methodgetdiv classform-group mb-2input typetext classform-control-plaintext namesnameplaceholder请输入班级名称/divbutton typesubmit classbtn btn-primary mb-2查询/buttona classbtn btn-primary mb-2 href${pageContext.request.contextPath }/clz/toEdit新增/a
/formtable classtable table-striped bg-successtheadtrth scopecolID/thth scopecol名称/thth scopecol年龄/thth scopecol描述/th/tr/theadtbodyc:forEach varb items${lst }trtd${b.sid }/tdtd${b.sname }/tdtd${b.sage }/tdtd${b.sinfo }/tdtda href${pageContext.request.contextPath }/clz/toEdit?cid${b.cid}修改/aa href${pageContext.request.contextPath }/clz/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
clzEdit.jsp
%--Created by IntelliJ IDEA.User: 微微Date: 2023/9/8Time: 17:09To change this template use File | Settings | File Templates.
--%
% 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/title
/head
body
form action${pageContext.request.contextPath }/clz/${empty b ? add : edit} methodpostid:input typetext namecid value${b.cid }brcname:input typetext namecname value${b.cname }brcteacher:input typetext namecteacher value${b.cteacher }brinput typesubmit
/form
/body
/html 运行结果
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