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mybatis在连接数据库中运行项目时找不到项目文件。

0

1

spring

class="cursor-pointer"> 详细描述

log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Exception in thread "main" org.apache.ibatis.exceptions.PersistenceException:

### Error building SqlSession.

### The error may exist in SQL Mapper Configuration

### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties

at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)

at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:80)

at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:64)

at Test.main(Test.java:18)

Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties

at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:121)

at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:99)

at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:78)

... 2 more

Caused by: java.io.IOException: Could not find resource jdbc.properties

at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:114)

at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:100)

at org.apache.ibatis.io.Resources.getResourceAsProperties(Resources.java:128)

at org.apache.ibatis.builder.xml.XMLConfigBuilder.propertiesElement(XMLConfigBuilder.java:225)

at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:106)

... 4 more

Process finished with exit code 1

class="cursor-pointer"> 错误截图

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第一次使用IDEA时找不到.properties,Mapper.xml文件

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1

spring mybatis

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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空指针异常

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1

mybatis

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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创建Maven项目没有框架

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1

maven

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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在做一个@DeclareParents的测试的时候，报错。

0

1

spring

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

package com.ssm.aop.advice;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.stereotype.Component;

@Component
public class HelloAdviceAround implements MethodInterceptor {
    private void before(){
        System.out.println("Before: this is AroundAdvice not xml or annotation");
    }
    private void after(){
        System.out.println("After: hei boy : all of the sentences are done");
    }
    @Override
    public Object invoke(MethodInvocation methodInvocation) throws Throwable {
        before();
        Object last=methodInvocation.proceed();
        after();
        return last;
    }
}



package com.ssm.aop.advice;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
/*
定义一个切面类，实现环绕增强；
@Aspect 注解， 不需要类再实现接口 （把类需要实现的东西放到了advice）
@Around注解为Aspectj切点表达式
proceedingJoinPoint的对象就是链接点，此名字可以取得方法名和参数
*/
@Aspect
@Component
public class AroundAspect {
    //两个切面类都切点，用于试验。 结果可以遇见是，execution指定都位置，方法被增强类。
    //ProceedingJoinPoint的点就是用于增强的点，还能通过正则表达式进行范围控制
   // @Around("execution(* com.ssm.aop.impl.HelloImpl.*(..))")
    @Around("execution(* com.ssm.aop.dao.Hello.*(..))")
    public  Object around(ProceedingJoinPoint pjp) throws  Throwable{

        before();
        Object result =pjp.proceed();
        after();
        return result;

    }
    private void before(){
        System.out.println("Before");
    }
    private void after(){
        System.out.println("After");
    }


}

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postman测试restful接口问题

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1

rest

class="cursor-pointer"> 详细描述

该问题已被官方收录

Spring和Mybatis整合错误

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1

spring mybatis

class="cursor-pointer"> 详细描述

pom：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

<groupId>com.mybatis</groupId>
    <artifactId>MybatisInSpring</artifactId>
    <version>1.0-SNAPSHOT</version>
    <dependencies>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>
        
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.1</version>
        </dependency>
        
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.39</version>
        </dependency>
        
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.2.0.RELEASE</version>
        </dependency>
        
        
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>4.2.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.2.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>

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: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
      http://www.springframework.org/schema/context/spring-context.xsd">

<context:property-placeholder location="classpath:db.properties"/>
    <bean id="dataSource" class="${dataSource}">
        <property name="driverClassName" value="${driver}"/>
        <property name="url" value="${url}"/>
        <property name="username" value="${username}"/>
        <property name="password" value="${password}"/>
        
    </bean>

User:
package entity;

import java.text.SimpleDateFormat;

public class User {
    private Integer id;
    private String username;
    private String number;
    private Long create_at;
    private Long update_at;

public Integer getId() {
        return id;
    }

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

public String getUsername() {
        return username;
    }

public void setUsername(String username) {
        this.username = username;
    }

public String getNumber() {
        return number;
    }

public void setNumber(String number) {
        this.number = number;
    }

public Long getCreate_at() {
        return create_at;
    }

public void setCreate_at(Long create_at) {
        this.create_at = create_at;
    }

public Long getUpdate_at() {
        return update_at;
    }

public void setUpdate_at(Long update_at) {
        this.update_at = update_at;
    }

public String toString() {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        return "学生:id=" + id + ", name=" + username + ", number="
                + number + ", create_at:" + df.format(create_at) + ", update_at:" + df.format(update_at);
    }
}

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

    @Test
    public void testFindUserById1() throws Exception {
        ApplicationContext applicationContext=new ClassPathXmlApplicationContext("applicationContext.xml");
        UserMapper userMapper = (UserMapper) applicationContext.getBean("userMapper");
        User user = userMapper.findUserById(1);
        System.out.println(user);
    }

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运行时显示bean注入不进去

0

1

SSM

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

打包jar包的时候报错，显示无法创建文件夹

0

1

springRMI

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

<build>
    <resources>

      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>true</filtering>
      </resource>
    </resources>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>2.3.2</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-shade-plugin</artifactId>
        <version>2.4.1</version>
        <executions>
          <execution>
            <phase>package</phase>
            <goals>
              <goal>shade</goal>
            </goals>
            <configuration>
              <filters>
                <filter>
                  <artifact>*:*</artifact>
                  <excludes>
                    <exclude>META-INF/*.SF</exclude>
                    <exclude>META-INF/*.DSA</exclude>
                    <exclude>META-INF/*.RSA</exclude>
                  </excludes>
                </filter>
              </filters>
              <transformers>
                <transformer
                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                  <mainClass>com.jnshu.main.RmiService</mainClass>
                </transformer>
                <transformer
                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                  <resource>META-INF/spring.handlers</resource>
                </transformer>
                <transformer
                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                  <resource>META-INF/spring.schemas</resource>
                </transformer>
              </transformers>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</project>

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springboot整合shiro和dubbo

0

1

class="cursor-pointer"> 详细描述