ssm整合

構圖
目錄結構圖
Controller.CategoryController

package com.how2java.controller;

import com.how2java.pojo.Category;
import com.how2java.service.CategoryService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import sun.misc.Contended;

import java.util.List;

@Controller
@RequestMapping("")
public class CategoryController {
    @Autowired
    CategoryService categoryService;

    @RequestMapping("listCategory")
    public ModelAndView listCategory(){
        ModelAndView mv=new ModelAndView();

        List<Category> cs=categoryService.list();
        mv.addObject("cs",cs);
        mv.setViewName("listCategory");
        return mv;
    }
}

mapper.Category.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.how2java.mapper.CategoryMapper">
    <insert id="add" parameterType="Category" >
	        insert into category_ ( name ) values (#{name})
	    </insert>

    <delete id="delete" parameterType="Category" >
	        delete from category_ where id= #{id}
	    </delete>

    <select id="get" parameterType="_int" resultType="Category">
	        select * from   category_  where id= #{id}
	    </select>

    <update id="update" parameterType="Category" >
	        update category_ set name=#{name} where id=#{id}
	    </update>
    <select id="list" resultType="Category">
	        select * from   category_
	    </select>
</mapper>

mapper.CategoryMapper

package com.how2java.mapper;

import com.how2java.pojo.Category;

import java.util.List;

public interface CategoryMapper {
    public  int add(Category Category);

    public void delete(int id);

    public Category get(int id);

    public int update(Category category);

    public List<Category> list();

    public int count();
}

pojo.Category

package com.how2java.pojo;

public class Category {
    private int id;
    private  String name;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Category{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }
}

Service.CategoryService

package com.how2java.service;

import com.how2java.pojo.Category;

import java.util.List;

public interface CategoryService {
    List<Category> list();
}

Service.CategoryServcieImpl

package com.how2java.service.impl;

import com.how2java.mapper.CategoryMapper;
import com.how2java.pojo.Category;
import com.how2java.service.CategoryService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class CategoryServiceImpl implements CategoryService {

@Autowired
    CategoryMapper categoryMapper;

    @Override
    public List<Category> list() {
        return categoryMapper.list();
    }
}

test.MybatisTest

package com.how2java.test;

import com.how2java.mapper.CategoryMapper;
import com.how2java.pojo.Category;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.List;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class MybatisTest {

    @Autowired
    private CategoryMapper categoryMapper;

    @Test
    public void test(){
        Category category=new Category();
        category.setName("new Category");
        categoryMapper.add(category);
    }

    @Test
    public void list(){
    List li=   categoryMapper.list();
        System.out.println(li);
    }
}

applicationContext.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:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

<context:annotation-config/>
    <context:component-scan base-package="com.how2java.service"/>

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName">
        <value>com.mysql.jdbc.Driver</value>
    </property>
    <property name="url">
        <value>jdbc:mysql://localhost:3306/how2java?characterEncoding=UTF-8</value>
    </property>
    <property name="username">
        <value>root</value>
    </property>
    <property name="password">
        <value>123456</value>
    </property>

</bean>

    <bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="typeAliasesPackage" value="com.how2java.pojo"></property>
        <property name="dataSource" ref="dataSource"></property>
        <property name="mapperLocations" value="classpath:com/how2java/mapper/Category.xml"></property>
    </bean>

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.how2java.mapper"></property>
    </bean>

</beans>```


log4j.properties

```java
# Global logging configuration
log4j.rootLogger=ERROR, stdout
# MyBatis logging configuration...
log4j.logger.com.how2java=TRACE
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n```


springMVC.xml

```java
<?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:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

<context:annotation-config/>
<context:component-scan base-package="com.how2java.controller">
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>

<mvc:annotation-driven/>

    <mvc:default-servlet-handler/>


    <bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver"
    >
       <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>

    </bean>
    </beans>