Injection of resource dependencies failed; nested exception is org.springframework.beans.factor的报错解决

最新推荐文章于 2024-06-09 11:30:25 发布

原创最新推荐文章于 2024-06-09 11:30:25 发布 · 2.3w 阅读

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#java #spring #web #ssm

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本文详细解析了Spring框架中Bean创建异常的原因及解决过程，包括因资源依赖注入失败、Mapper XML配置错误等问题，最终通过修正namespace命名空间解决了问题。

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报错信息

org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘adminLoginAction’: Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘adminServiceImpl’: Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘adminDAOImpl’ defined in file [xxxx\software\target\software\WEB-INF\classes\cn\edu\nchu\student\dao\impl\AdminDAOImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory’ 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.cfg.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for sanxiaoNS.doCreate

解决过程（网上方法总结）

参考文档：https://www.cnblogs.com/enshrineZither/p/3484534.html

beans 的xml里面没有配置
<context:component-scan base-package=“package-name”/>
调用死循环

@Repository
public class ADaoImpl extends BaseDaoImpl implements ADao {
 
   @Resource
    private ADao aDao;
 
    @Override
    public int addInbox(TInbox inbox) {
        ....
        ......
        aDao.delete(id);
    }
   @Override
    public int delete(Long id) {
        .....
    }
}

即XyyyyDao实现里面，调用了他接口的本身方法，导致，加载ADaoImpl需要先加载完ADao，而ADao却还没有加载！
3. …

最终解决

一开始在网上搜寻各类方法，发现不存在所说的问题，因为一开始的编译是正常的，增加了一个功能模块后出现了此类问题，最后发现是Mapper.xml中的namespace没有对应：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="sanxiaoNS"> //我的是这里出现了问题，名称不匹配，修改成对应正确即可！

    <resultMap id="articleResultMap" type="Article">
        <id property="title" column="title"/>
        <result property="time" column="time"/>
        <result property="name" column="name"/>
        <result property="image" column="image"/>
        <result property="content" column="content"/>
        <result property="file" column="file"/>
    </resultMap>
    <insert id="doCreate" parameterType="Article">
        INSERT INTO article(title,time,name,image,content,file) VALUES (#{title},#{time},#{name},#{image},#{content}#{file})
    </insert>
    <select id="findAll" parameterType="java.util.List" resultMap="articleResultMap">
        SELECT title,time,name,image,content,file FROM article
    </select>
</mapper>