SSM图书管理系统:
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数据库
图书分类表
##
整合spring
创建po
package com.xiao.po;
import java.io.Serializable;
//图书类的一个对象:
//实现虚拟化
public class ClassInfo implements Serializable {
private Integer id;
private String name;
private String renarks;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getRenarks() {
return renarks;
}
public void setRenarks(String renarks) {
this.renarks = renarks;
}
}
创建dao
package com.xiao.dao;
//查询所以的用户信息
import com.xiao.po.ClassInfo;
import java.util.List;
public interface ClassInfoDao {
//查询所有的图类型信息
List<ClassInfo> queryClassInfoAll();
}
创建service
package com.xiao.service;
import com.xiao.po.ClassInfo;
import java.util.List;
public interface ClassInfoService {
List<ClassInfo> queryClassInfoAll();
}
创建ServiceImpl
package com.xiao.service.Impl;
import com.xiao.po.ClassInfo;
import com.xiao.service.ClassInfoService;
import org.springframework.stereotype.Service;
import java.util.List;
@Service("classInfoService")
public class ClassInfoServiceImpl implements ClassInfoService {
@Override
public List<ClassInfo> queryClassInfoAll() {
System.out.println("查询到了所以的图书类型》》》》");
return null;
}
}
配置sepring。xml文件:
<?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: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 https://www.springframework.org/schema/context/spring-context.xsd">
<!--开启注解扫描,处理servlce层和dao层,controller不处理-->
<context:component-scan base-package="com.xiao" >
<!-- p配置不扫描的-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
</beans>
测试层demo:
package com.xiao.demo;
import com.xiao.po.ClassInfo;
import com.xiao.service.ClassInfoService;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
//c测试spring是否能执行:
public class TestDemo {
@Test
public void testspring(){
// 或者spring容器:
ApplicationContext app= new ClassPathXmlApplicationContext("spring.xml");
// 获取bean
ClassInfoService info=(ClassInfoService) app.getBean("classInfoService");
info.queryClassInfoAll();
}
}