创建 bean 时出错，注入自动装配的依赖项失败，无法自动装配字段

Question

遇到异常，以下是日志：org.springframework.beans.factory.BeanCreationException：创建名为“speaker”的bean时出错：注入自动装配依赖项失败；嵌套异常是 org.springframework.beans.factory.BeanCreationException：无法自动装配方法：public final void org.mybatis.spring.support.SqlSessionDaoSupport.setSqlSessionTemplate(org.mybatis.spring.SqlSessionTemplate); 嵌套异常是 java.lang.NoSuchMethodError: org.springframework.core.MethodParameter.getNestedParameterType()Ljava/lang/ClassJava网络服务：@WebServicepublic class voiceRecognition extends SpringBeanAutowiringSupport {    @Autowired    private Speaker speaker;    @WebMethod    public void test() {        String userid = "111";        String enrollmentid = "111";        try{        String test1 = speaker.getEnrollmentId(userid);          System.out.println(test1);        }        catch (Exception e)        {            e.printStackTrace();        }        }}Speaker.java:package ph.com.aub.mapper;import org.apache.ibatis.annotations.Param;import org.springframework.stereotype.Service;@Servicepublic interface Speaker {    public String getEnrollmentId(@Param("userid") String userid);}扬声器.xml：<?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 = "ph.com.aub.mapper.Speaker"><select id = "getEnrollmentId" resultType = "string" parameterType = "string">Select enrollmentid from speakerids where userid = #{userid}</select></mapper>网页.xml：<?xml version = '1.0' encoding = 'windows-1252'?><web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"         version="2.5">

Answer 1

我相信您配置错误basePackage。MapperScannerConfigurer它应该是包含映射器类而不是映射器类本身的包。所以尝试将其更改basePackage为：

<bean id="mapperSpeaker" class="org.mybatis.spring.mapper.MapperScannerConfigurer">

    <property name="basePackage" value="ph.com.aub.mapper" />

    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactorySpeaker" />

</bean>