如果有带参数的构造器,编译器不会自动生成无参构造器.当查询需要返回对象时,ORM框架用反射来调用对象的无参构造函数,所以会导致此类异常 public Test(){ }…

org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.apache.ibatis.reflection.ReflectionException: Error instantiating class com.cyf.pojo.User with invalid types () or values (). Cause: java.lang.NoSuchMethodExce…

本文为博主原创,未经允许不得而转载: 异常展示: dao层定义的接口为: public int getClientTotal(); 在mybatis中的sql为: <select id="getClientTotal" parameterType="String" resultType="Integer"> SELECT COUNT(*) AS oldNum FROM tbl__client_info <where> &l…

映射文件: <select id="selectKeyByUserId"  resultMap="Xxx">        <![CDATA[        SELECT * FROM 表名1         where 1=1            <if test="userId!=0">            and ID=#{userId,jdbcType=NUMERIC})             <…

Caused by: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'company' in 'class java.lang.String' at org.apache.ibatis.reflection.Reflector.getGetInvoker(Reflector.java:380) at org.apache.ibatis.reflection.MetaC…

最近在练习MyBatis时 进行姓名的模糊查询时候出现 org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'name' in 'class java.lang.String' ### Cause: o…

mybatis查询报错: Caused by: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'areaName' in 'class java.lang.String' at org.apache.ibatis.reflection.Reflector.getGetInvoker(Reflector.java:) at org.apache.ibatis.refle…

Caused by: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'parentId' in 'class java.lang.String' at org.apache.ibatis.reflection.Reflector.getGetInvoker(Reflector.java:) at org.apache.ibatis.reflection.MetaCla…

org.apache.ibatis.exceptions.PersistenceException: ### Error querying database.  Cause: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'empid' in 'class cn.happy.entity.Emp'### Cause: org.apache.ibatis.reflect…

再用 junit 测试MyBatis时发现的错误: org.apache.ibatis.exceptions.PersistenceException: ### Error querying database.  Cause: org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'ItemsCustom' in 'class com.pojo.OrderDetailCust…

mybatis接口 List<String> getUsedCate(String time); 配置文件 <select id="getUsedCate" parameterType="java.lang.String" resultType="java.lang.String"> select distinct(cate.cate_name) from account as acc left join conCateg…

错误异常:nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'id' in 'class java.lang.String' 映射器类(Mapper interface) public interface NarCodeService { public NarCode getNarCode(String id); } Xml映射文件…

HTTP Status 500 - Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'ItemsCustom' in 'class com.mybati…

异常: org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'socialCode' in 'class java.lang.String' 方法一.sql映射接口,使用@Param(value = "socialCode")指定传入sql…

今天在用Mybatis的时,写测试验证插入操作时出现错误org.apache.ibatis.reflection.ReflectionException: There is no getter for property named XXX. 根据字面意思就是我没有为XXX属性写getter方法,课我检查实体类却未发现有漏写情况出现,遂检查配置文件. 我在我自己的mybatis-config.xml文件中发现一行代码: <setting name="mapUnderscoreToCamelC…

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'userId1' in 'class com.ca.agent.model.mybatis.B2bAccOcPage' at org.mybatis.spring.MyBatisException…

 org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'list' in 'class com.bw.yun.pojo.Page' 报了这个错.今天一直都在该这个方法以及优化 我的是目的是:在我的dao中根据一个对象字段进行查询,返回一个 list<对象> ,我的实体类是这样的 然后我的sql语句是这样的 主要说一下这个collection是你实体类的字段名,item 是…

错误信息: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'enterpriseId' in 'class java.lang.String' 解决办法 xml里面,标签 parameterType 的值有错误. 或者在DAO层的方法参数前加上注解 @Param("")…

1. 异常描述 FATAL EXCEPTION: main Process: com.whereru.greengrass.goforit, PID: 13847 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.whereru.greengrass.goforit/com.whereru.greengrass.goforit.activity.MainActivity}: android.view.In…

错误提示: Caused by: org.apache.ibatis.executor.ExecutorException: No constructor found in com.tuyrk._161_java_socket.project6.entity.User matching [java.lang.Long, java.lang.String, java.lang.String] 这里就有点坑了,明明提示的是没有三个参数的构造函数,然而我添加上三个参数的构造函数还是报错 解决方法: 添…

从上面异常的解释来看是因为反射不能将Orders设置到orderdetails属性上,仔细检查了MyBatis的配置文件,发现: <collection property="orderdetails" javaType="com.luchao.mybatis.first.po.Orderdetail"> <result column="id" property="id"/> <result col…

原因在于: 在MyBatis中使用动态语句的判断时,传入的参数(parameterType)为Java基本数据类型,获取的结果(resultType)为JavaBean对象,此时就会抛出该异常,此时可以在参数前添加@Param(“属性名”)注解. eg: <select id="allOrders" parameterType="integer" resultType="Order"> select <include refid…

#号改为$即可…

很明显,报错是xml有问题,于是去检查,发现: 由于粗心,保存的时候,按的太频繁,多按了个s在里面,导致启动报错!…

异常描述: Caused by: org.apache.ibatis.reflection.ReflectionException: Error instantiating interface cn.***.ListValueDao with invalid types () or values (). Cause: java.lang.NoSuchMethodException: cn.***.ListValueDao.<init>() 错误跟踪: 百度了一下,大部分说明是 反射默认会调用无…

mybatis报错 Error instantiating interface com.atguigu.mybatis.dao.DepartmentMapper with invalid types () or values () 错因在于把 <association property="dept" select="com.atguigu.mybatis.dao.DepartmentMapper.getDeptById" column="d_id&q…

  原因: Pojo类User没提供无参数构造方法, 加上该构造方法后,问题解决 ### Cause: org.apache.ibatis.reflection.ReflectionException: Error instantiating class com.chry.browserServer.db.model.User with invalid types () or values (). cause: java.lang.NoSuchMethodException: com.chry.…

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named 'parent_maintenance_no' in 'class *****' 我的错误原因是,parameterType类型中没有字段parent_maintenance_no…

异常详细 org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.builder.BuilderException: Error resolving JdbcType. Cause: java.lang.IllegalArgumentException: No enum constant org.apache.ibatis.type.JdbcType.varchar at org.mybat…

<select id="getUserIn" parameterType="QueryVo" resultMap="userMap"> SELECT <!-- 引用sql片段 --> <include refid="user_sql" /> FROM USER <where> <!-- 遍历pojo传入的集合 collection="in"  要遍历po…