Mybatis 和自定义构造函数冲突的解决办法

我就是我 2022-06-15 03:44 278阅读 0赞

使用Mybatis实现数据库查询时候报错，内容如下

\#\#\# Cause: org.apache.ibatis.reflection.ReflectionException: Error instantiating class corp.credit.dialOutTask.bean.DialOutTaskDetail with invalid types () or values (). Cause: java.lang.NoSuchMethodException: corp.credit.dialOutTask.bean.DialOutTaskDetail.<init>()  
at corp.credit.base.fac.DaoFac.executeMapper(DaoFac.java:257)

很多时候报错

Cause: org.apache.ibatis.reflection.ReflectionException: Error instantiating class

是由于数据库数据和 Bean 之中的数据不匹配，或者数据类型不匹配或者属性名出现偏差。但这里要说的不是以上问题，实践中还有一种情况也出现了上述报错，即，Bean 文件中自己定义了一个构造函数，使用 Mybatis 进行数据查询时，出现了问题。

为解决上述问题，方法如下：

public class DialOutTaskDetail {
    
        String dialOutTaskId; // 外呼任务 Id
        String custName; // 用户名
        String custId; // 用户Id
        String agentName; // 坐席姓名
        String agentId; // 坐席Id
        String taskDesp; // 任务描述
        String lastDialDate; // 最近拨打时间
        String dialState; // 外呼状态
        String isConnect;// 是否接通
        String callBackState; // 回访状态
        String dialTime; // 拨打次数
    
    
        String custEcif; // 用户ECIFID
        String custMobile; // 用户MobileNum
        String dialRes; // 拨打结果
    
    
        public DialOutTaskDetail(String dialOutTaskId, String custName,  String custId,  String agentName,  String agentId,
            String taskDesp, String lastDialDate,String dialState, String isConnect,String callBackState, String dialTime,
            String custEcif, String custMobile,String dialRes) {
            this.dialOutTaskId = dialOutTaskId;
            this.custName = custName;
            this.custId = custId;
            this.agentId = agentId;
            this.agentName = agentName;
            this.taskDesp = taskDesp;
            this.lastDialDate = lastDialDate;
            this.dialState = dialState;
            this.isConnect = isConnect;
            this.callBackState = callBackState;
            this.dialTime = dialTime;
            this.custEcif = custEcif;
            this.custMobile = custMobile;
            this.dialRes = dialRes;
        }
    
        public DialOutTaskDetail() {
        }
    
        public String getDialOutTaskId() {
            return dialOutTaskId;
        }
    
        public void setDialOutTaskId(String dialOutTaskId) {
            this.dialOutTaskId = dialOutTaskId;
        }
    
        public String getCustName() {
            return custName;
        }
    
        public void setCustName(String custName) {
            this.custName = custName;
        }
    
        public String getCustId() {
            return custId;
        }
    
        public void setCustId(String custId) {
            this.custId = custId;
        }
    
        public String getAgentName() {
            return agentName;
        }
    
        public void setAgentName(String agentName) {
            this.agentName = agentName;
        }
    
        public String getAgentId() {
            return agentId;
        }
    
        public void setAgentId(String agentId) {
            this.agentId = agentId;
        }
    
        public String getTaskDesp() {
            return taskDesp;
        }
    
        public void setTaskDesp(String taskDesp) {
            this.taskDesp = taskDesp;
        }
    
        public String getLastDialDate() {
            return lastDialDate;
        }
    
        public void setLastDialDate(String lastDialDate) {
            this.lastDialDate = lastDialDate;
        }
    
        public String getDialState() {
            return dialState;
        }
    
        public void setDialState(String dialState) {
            this.dialState = dialState;
        }
    
        public String getIsConnect() {
            return isConnect;
        }
    
        public void setIsConnect(String isConnect) {
            this.isConnect = isConnect;
        }
    
        public String getCallBackState() {
            return callBackState;
        }
    
        public void setCallBackState(String callBackState) {
            this.callBackState = callBackState;
        }
    
        public String getDialTime() {
            return dialTime;
        }
    
        public void setDialTime(String dialTime) {
            this.dialTime = dialTime;
        }
    
        public String getCustEcif() {
            return custEcif;
        }
    
        public void setCustEcif(String custEcif) {
            this.custEcif = custEcif;
        }
    
        public String getCustMobile() {
            return custMobile;
        }
    
        public void setCustMobile(String custMobile) {
            this.custMobile = custMobile;
        }
    
    }

再回顾一下之前的报错的Bean：

public class DialOutTaskDetail {
    
        String dialOutTaskId; // 外呼任务 Id
        String custName; // 用户名
        String custId; // 用户Id
        String agentName; // 坐席姓名
        String agentId; // 坐席Id
        String taskDesp; // 任务描述
        String lastDialDate; // 最近拨打时间
        String dialState; // 外呼状态
        String isConnect;// 是否接通
        String callBackState; // 回访状态
        String dialTime; // 拨打次数
    
    
        String custEcif; // 用户ECIFID
        String custMobile; // 用户MobileNum
        String dialRes; // 拨打结果
    
    
        public DialOutTaskDetail(String dialOutTaskId, String custName,  String custId,  String agentName,  String agentId,
            String taskDesp, String lastDialDate,String dialState, String isConnect,String callBackState, String dialTime,
            String custEcif, String custMobile,String dialRes) {
            this.dialOutTaskId = dialOutTaskId;
            this.custName = custName;
            this.custId = custId;
            this.agentId = agentId;
            this.agentName = agentName;
            this.taskDesp = taskDesp;
            this.lastDialDate = lastDialDate;
            this.dialState = dialState;
            this.isConnect = isConnect;
            this.callBackState = callBackState;
            this.dialTime = dialTime;
            this.custEcif = custEcif;
            this.custMobile = custMobile;
            this.dialRes = dialRes;
        }
    
        public String getDialOutTaskId() {
            return dialOutTaskId;
        }
    
        public void setDialOutTaskId(String dialOutTaskId) {
            this.dialOutTaskId = dialOutTaskId;
        }
    
        public String getCustName() {
            return custName;
        }
    
        public void setCustName(String custName) {
            this.custName = custName;
        }
    
        public String getCustId() {
            return custId;
        }
    
        public void setCustId(String custId) {
            this.custId = custId;
        }
    
        public String getAgentName() {
            return agentName;
        }
    
        public void setAgentName(String agentName) {
            this.agentName = agentName;
        }
    
        public String getAgentId() {
            return agentId;
        }
    
        public void setAgentId(String agentId) {
            this.agentId = agentId;
        }
    
        public String getTaskDesp() {
            return taskDesp;
        }
    
        public void setTaskDesp(String taskDesp) {
            this.taskDesp = taskDesp;
        }
    
        public String getLastDialDate() {
            return lastDialDate;
        }
    
        public void setLastDialDate(String lastDialDate) {
            this.lastDialDate = lastDialDate;
        }
    
        public String getDialState() {
            return dialState;
        }
    
        public void setDialState(String dialState) {
            this.dialState = dialState;
        }
    
        public String getIsConnect() {
            return isConnect;
        }
    
        public void setIsConnect(String isConnect) {
            this.isConnect = isConnect;
        }
    
        public String getCallBackState() {
            return callBackState;
        }
    
        public void setCallBackState(String callBackState) {
            this.callBackState = callBackState;
        }
    
        public String getDialTime() {
            return dialTime;
        }
    
        public void setDialTime(String dialTime) {
            this.dialTime = dialTime;
        }
    
        public String getCustEcif() {
            return custEcif;
        }
    
        public void setCustEcif(String custEcif) {
            this.custEcif = custEcif;
        }
    
        public String getCustMobile() {
            return custMobile;
        }
    
        public void setCustMobile(String custMobile) {
            this.custMobile = custMobile;
        }
    }

少就少在缺了一个默认的构造函数，添加一个默认的构造函数即可解决上述问题。