Ayu__haha 2022-04-02 11:36 采纳率: 100%
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已结题

SSM整合时出现IllegalStateException、BeanCreationException、UnsatisfiedDependencyException等错误

问题遇到的现象和发生背景

Spring,MyBatis、SpringMVC整合时出现很多错误,pom依赖文件如下:

问题相关代码,请勿粘贴截图
<?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.imooc</groupId>
    <artifactId>yutong-reader</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!--注意添加依赖后要在project structure中artifacts中添加-->
    <!--1.Maven依赖spring-mvc-->
    <repositories>
        <repository>
            <id>aliyun</id>
            <name>aliyun</name>
            <url>http://maven.aliyun.com/repository/public</url>
        </repository>
    </repositories>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.2.6.RELEASE</version>
        </dependency>
        <!--Freemarker-->
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.30</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>5.2.6.RELEASE</version>
        </dependency>
        <!--Jackson springmvc默认的JSON序列化工具-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.11.0</version>
        </dependency>
        <!--Jackson提供的注解包,提供用在实体类上的注解,方便JSON的序列化和反序列化-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.11.0</version>
        </dependency>
        <!--数据绑定包,和springmvc的数据之间进行有效地交互-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.11.0</version>
        </dependency>
        <!--Mybatis整合步骤:1.引入依赖-->
        <!--mybatis底层操作数据库也是依赖于jdbc,spring通过spring-jdbc模块将jdbc封装和扩展-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.2.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.4</version>
        </dependency>
        <!--MyBatis与Spring整合组件-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.3</version>
        </dependency>
        <!--JDBC驱动,要与自己的mysql版本相同-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.26</version>
        </dependency>
        <!--alibaba druid连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.14</version>
        </dependency>
        <!--单元测试依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.2.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>

        <!--Java环境没有连接Tomcat,找不到javax.serlvlet.ServletContext,所以要添加依赖-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope><!--运行过程中提供jar包支持,但对当前工程打包时,不会对servlet-api中jar包进行打包-->
            <!--实际运行时是在tomcat上,所以不需要javax.servlet-->
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <version>RELEASE</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>
</project>

运行结果及报错内容 :

严重: Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@5f2108b5] to prepare test instance [com.imooc.reader.service.TestServiceTest@2767e23c]
java.lang.IllegalStateException: Failed to load ApplicationContext

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'testMapper' defined in file [E:\EclipseJavaEEWorkSpace\yutong-reader\target\classes\com\imooc\reader\mapper\TestMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'testMapper' defined in file [E:\EclipseJavaEEWorkSpace\yutong-reader\target\classes\com\imooc\reader\mapper\TestMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor

Caused by: org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor

等等

项目目录结构:

img

img

我的解答思路和尝试过的方法

刚开始学,是按着视频敲的,检查了几遍了不知道问题在哪

我想要达到的结果
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3条回答 默认 最新

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    mybatis-config.xml配置错误,必须增加mybatisplus分页配置类(PaginationInterceptor)

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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