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程序运行成功，但log4j无法显示日志

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1

DB设计

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

JDBC Template sql语句的位置文件实体类路径

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1

JDBC

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

我们的包名应该用model还是Entity

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1

spring

class="cursor-pointer"> 详细描述

springcloud分模块开发怎么划分各层

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1

springcloud

class="cursor-pointer"> 详细描述

tuscany得客户端配置

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1

tuscany

class="cursor-pointer"> 详细描述

springboot+mybatis连接数据库

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1

springboot

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 源码

mybatis.mapper-locations=classpath:mapper/*.xml

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/mytest
#spring.datasource.data-username=root
spring.datasource.username=root
#spring.datasource.data-password=1234
spring.datasource.password=1234

jdbctemplate和JDBC连接数据库的对应的步骤是什么？

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JDBC

class="cursor-pointer"> 详细描述

请问使用Json Tag-lib生成假数据改怎么做?网上搜不到demo

1

SSM

class="cursor-pointer"> 详细描述

设置注册的用户名和密码不为空，创建一个校验器，但是运行时会提示请求不对。

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1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

进行spring与mybatis整合的时候，出现报错

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

public class UserTest {
@Test
	public void doTest(){
		ApplicationContext applicationContext =new ClassPathXmlApplicationContext("ApplicationContext.xml");
		UserMapper userMapper =(UserMapper) applicationContext.getBean("UserMapper");
		User user =userMapper.findUserById("2");
		System.out.println(user);
    }
}

org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'UserMapper' available

at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:775)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1221)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:294)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1083)
	at UserTest.doTest(UserTest.java:11)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)