ssm整合
一、导入相关包
二、开发流程
1.写entity
package com.eggtwo.euq.entity;
import java.io.Serializable;
import java.math.BigDecimal;
import java.util.Date;
public class Member {
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
private String name;
private int age;
private Date birthday;
private boolean man;
private BigDecimal score;
public BigDecimal getScore() {
return score;
}
public void setScore(BigDecimal score) {
this.score = score;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public boolean isMan() {
return man;
}
public void setMan(boolean man) {
this.man = man;
}
@Override
public String toString() {
return "Member{" +
"id=" + id +
", name=‘" + name + ‘\‘‘ +
", age=" + age +
", birthday=" + birthday +
", man=" + man +
", score=" + score +
‘}‘;
}
}
Member
2.配mapper.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">
<!--映射文件命名空间：要唯一-->
<mapper namespace="com.eggtwo.euq.dao.MemberDao">
<!--
*******当实体属性和表字段名称一致的话resultMap标签可以省略********
resultMap标签：映射实体和表关系
id:映射关系id,要唯一
type:实体全路径
-->
<resultMap id="memberMap" type="com.eggtwo.euq.entity.Member">
<!--id：映射主键属性
result:映射非主键属性
property:实体属性名称
column:表字段名称
-->
<id property="id" column="id"/>
<result property="name" column="name"/>
<result property="age" column="age"/>
<result property="birthday" column="birthday"/>
<result property="man" column="man"/>
<result property="score" column="score"/>
</resultMap>
<insert id="add" parameterType="com.eggtwo.euq.entity.Member" useGeneratedKeys="true" keyProperty="id">
insert into t_member(name,age,birthday,man,score)
values(#{name},#{age},#{birthday},#{man},#{score})
</insert>
<update id="update" parameterType="com.eggtwo.euq.entity.Member">
update t_member set
name = #{name},
age = #{age},
birthday = #{birthday},
man = #{man},
score = #{score}
where id = #{id}
</update>
<delete id="delete" parameterType="int">
delete from t_member where id = #{id}
</delete>
<!-- <select id="getById" parameterType="int" resultType="com.eggtwo.entity.Member">-->
<!--resultType使用mybatis.xml中设置的别名，这样可以简化难度-->
<select id="getById" parameterType="int" resultMap="memberMap">
select id,name,age,birthday,man,score
from t_member
where id=#{id}
</select>
<!--
理论上resultType的值应该是:List<com.eggtwo.entity.Member>
实际上只需要写List集合中的类型就可以
-->
<select id="getAll" resultMap="memberMap">
select *
from t_member
</select>
<!--分页：多参数的写法-->
<select id="getPageList" parameterType="map" resultMap="memberMap">
select id,name,age,birthday,man,score
from t_member limit #{start},#{size}
</select>
<!--多条件查询-->
<select id="getListByWhere" parameterType="map" resultMap="memberMap">
select id,name,age,birthday,man,score
from t_member
<where>
<if test="name!=null and name!=‘‘">
and name like #{name}
</if>
<if test="score!=null">
and score > #{score}
</if>
</where>
</select>
<!--动态更新：可以支持部分字段更新-->
<update id="dynamicUpdate" parameterType="map">
update t_member
<set>
<if test="name!=null">
name = #{name},
</if>
<if test="age!=null">
age = #{age},
</if>
<if test="birthday!=null">
birthday = #{birthday},
</if>
<if test="man!=null">
man = #{man},
</if>
<if test="score!=null">
score = #{score},
</if>
</set>
where id=#{id}
</update>
<!--根据ids数组批量删除数据-->
<delete id="batchDelete" >
delete from t_member where id in
<!--
循环数组
解析成：(1,2,34)
#id表示数组中的每一个元素，名称可以任意写
-->
<foreach collection="array" open="(" close=")" separator="," item="id">
#{id}
</foreach>
</delete>
<!--根据ids列表批量删除数据-->
<delete id="batchDeleteList" >
delete from t_member where id in
<!--
循环数组
解析成：(1,2,34)
#id表示数组中的每一个元素，名称可以任意写
-->
<foreach collection="list" open="(" close=")" separator="," item="id">
#{id}
</foreach>
</delete>
</mapper>
3.配mybatis.xml
<?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>
<!--配置类的别名：使用type的地方可以直接写alias的值-->
<typeAliases>
<!--用类名做别名-->
<package name="com.eggtwo.euq.entity"/>
</typeAliases>
</configuration>
4.编写dao
package com.eggtwo.euq.dao;
import com.eggtwo.euq.entity.Member;
public interface MemberDao {
public void add(Member member);
}
4.1编写service
package com.eggtwo.euq.service;
import com.eggtwo.euq.dao.MemberDao;
import com.eggtwo.euq.entity.Member;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
//用注解实现IOC
@Service("memberService")
public class MemberService {
@Autowired
private MemberDao memberDao;
public void add(Member member) throws Exception {
memberDao.add(member);
// int a = 3 / 0;
}
}
5.配置spring.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/tx/spring-mvc.xsd
">
<!-- 配置C3P0连接池,目的：管理数据库连接 -->
<bean id="comboPooledDataSourceID" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
<property name="jdbcUrl" value="jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8"/>
<property name="user" value="root"/>
<property name="password" value="123456"/>
<!-- c3p0连接池的私有属性 -->
<property name="maxPoolSize" value="30" />
<property name="minPoolSize" value="10" />
<!-- 关闭连接后不自动commit -->
<property name="autoCommitOnClose" value="false" />
<!-- 获取连接超时时间 -->
<property name="checkoutTimeout" value="10000" />
<!-- 当获取连接失败重试次数 -->
<property name="acquireRetryAttempts" value="2" />
</bean>
<!-- 配置SqlSessionFactoryBean，目的：加载mybaits配置文件和映射文件，即替代原Mybatis工具类的作用 -->
<bean id="sqlSessionFactoryBeanID" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="comboPooledDataSourceID"/>
<!--加载mybatis.xml文件-->
<property name="configLocation" value="classpath:mybatis.cfg.xml"/>
<!--配置扫描式加载sql映射文件，去掉mybatis.xml中的mappers-->
<property name="mapperLocations" value="classpath:com/eggtwo/euq/entity/*.xml"/>
</bean>
<!-- 配置Mybatis的事务管理器，即因为Mybatis底层用的是JDBC事务管事器，所以在这里依然配置JDBC事务管理器 -->
<bean id="dataSourceTransactionManagerID" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="comboPooledDataSourceID"/>
</bean>
<!-- 配置事务通知，即让哪些方法需要事务支持 -->
<tx:advice id="tx" transaction-manager="dataSourceTransactionManagerID">
<tx:attributes>
<!-- 默认只处理运行时异常，可加rollback-for="Exception/Throwable"等处理所有异常或包括错误 -->
<tx:method name="add*" propagation="REQUIRED" rollback-for="Exception"/>
<tx:method name="insert*" propagation="REQUIRED" rollback-for="Exception"/>
<tx:method name="update*" propagation="REQUIRED" rollback-for="Exception"/>
<tx:method name="delete*" propagation="REQUIRED" rollback-for="Exception"/>
<tx:method name="*" propagation="SUPPORTS"/>
</tx:attributes>
</tx:advice>
<!-- 配置事务切面，即让哪些包下的类需要事务 -->
<aop:config>
<!--在service包下面使用事务-->
<aop:pointcut id="pointcut" expression="execution(* com.eggtwo.euq.service.*.*(..))"/>
<aop:advisor advice-ref="tx" pointcut-ref="pointcut"/>
</aop:config>
<!-- 配置SessionTemplate，已封装了繁琐的数据操作 -->
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg name="sqlSessionFactory" ref="sqlSessionFactoryBeanID"/>
</bean>
<!-- 自动扫描组件，要把controller去除，他们是在spring-mvc.xml中配置，如果不去除会影响事务管理。 -->
<context:component-scan base-package="com.eggtwo.euq">
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 配置 转换器，对于在basePackage设置的包（包括子包）下的接口类，
如果接口类的全类名在Mapper.xml文件中和定义过命名空间一致，
将被转换成spring的BEAN，在调用的地方通过@Autowired方式将可以注入接口实例 -->
<!--ps:mappeer.xml中的namespace="com.eggtwo.euq.dao.MemberDao 标签：id="add"
servcie中的类在调用dao中的方法时会查找（dao.way=com.eggtwo.euq.dao.MemberDao.add）
-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactory" ref="sqlSessionFactoryBeanID"/>
<property name="basePackage" value="com.eggtwo.euq.dao"/>
</bean>
</beans>
6.配置springmvc.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/tx/spring-mvc.xsd
">
<!-- 注册Action：自动扫描 单例模式-->
<context:component-scan base-package="com.eggtwo.euq.action" />
<!-- 通知springioc容器这些注解的作用 -->
<context:annotation-config/>
<!--注解映射器：可省略-->
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"></bean>
<!--视图解析器-->
<!--
如果Action中书写的是视图逻辑名称，那么视图解析器就必须配置
如果Action中书写的是视图真实名称，那么视图解析器就不能配置
-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 路径前缀 -->
<property name="prefix" value="/WEB-INF/jsp/"/>
<!-- 路径后缀 -->
<property name="suffix" value=".jsp"/>
<!-- 前缀+视图逻辑名+后缀=真实路径 -->
</bean>
<!-- 注册json解析适配器 -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
</list>
</property>
</bean>
<!-- SpringMVC上传文件时，需要配置MultipartResolver处理器 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="utf-8"/>
<property name="maxUploadSize" value="10485760000"/>
<property name="maxInMemorySize" value="40960"/>
</bean>
</beans>
7.配置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">
<!-- Spring配置 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</context-param>
<!-- 注册springmvc核心控制器-->
<servlet>
<!--servlet-name的值对应一个文件：/WEB-INF/DispatcherServlet-servlet.xml -->
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<!-- 指定application.xml文件 -->
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
<!--spring编码过滤器：解决POST提交中文乱码问题-->
<filter>
<filter-name>CharacterEncodingFilter</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>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
8.编写action
package com.eggtwo.euq.action;
import com.eggtwo.euq.entity.Member;
import com.eggtwo.euq.service.MemberService;
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 org.springframework.web.bind.annotation.RequestMethod;
import java.math.BigDecimal;
import java.util.Date;
@Controller
@RequestMapping("member")
public class MemberController extends BaseController {
@Autowired
private MemberService memberService;
@RequestMapping(value = "add", method = RequestMethod.GET)
public String add(Model model) {
try{
Member member = new Member();
member.setName("旺旺");
member.setScore(new BigDecimal(12));
member.setMan(new Boolean(true));
member.setBirthday(new Date());
member.setAge(14);
memberService.add(member);
}catch (Exception e){
e.printStackTrace();
}
return "member/add";
}
}
原文地址：https://www.cnblogs.com/eggTwo/p/11824130.html
时间： 2024-10-07 17:27:21