fangxiaofei123的博客

1、mybaits公共配置<?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> <!--引用数据库配置--> <prop

1.java目录下无法编译到target类路径下，导致mapper总resource无法加加载到mapper配置：错误如下Error building SqlSession.The error may exist in com/fxf/dao/UserMapper.xml Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOExceptio

<?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" xmlns:tx="ht

（1）依赖包： <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.2.0.RELEASE</version> </depende

总起：spring的ioc注入有三种方式：（1）构造方法:例如 <bean id="runner" class="org.apache.commons.dbutils.QueryRunner" scope="prototype"> <constructor-arg name="ds" ref="dataSource"></constructor-arg> </bean>(2)setter方式:<bean id="dat

1、pom引入： <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.20</version> </dependency> <dependency> <grou

1、新建两个类：AccountDaoImpl：IaccountServiceImpl2、classpath建立配置文件，由于反射方式建立类对象：accoutDao=com.fang.dao.Impl.AccountDaoImpliaccoutService=com.fang.service.impl.IaccountServiceImpl3、建立工厂类：package com.fang.Factory;import com.fang.service.IaccoutService;im