无法在类上找到合适的构造函数

问题描述 投票:0回答:2

我正在尝试将本机SQL结果映射到我的POJO,但是返回错误。这是完整的堆栈跟踪:

Hibernate: SELECT * FROM members_tb where memberName like ?
2019-12-19 07:40:20.688 TRACE 32472 --- [nio-8084-exec-2] o.h.type.descriptor.sql.BasicBinder      : binding parameter [1] as [VARCHAR] - [%Frank%]
java.lang.IllegalArgumentException: Could not locate appropriate constructor on class : com.app.ecclesiamainframe.entity.Members
    at org.hibernate.loader.custom.ConstructorResultColumnProcessor.resolveConstructor(ConstructorResultColumnProcessor.java:92)
    at org.hibernate.loader.custom.ConstructorResultColumnProcessor.performDiscovery(ConstructorResultColumnProcessor.java:45)
    at org.hibernate.loader.custom.CustomLoader.autoDiscoverTypes(CustomLoader.java:494)
    at org.hibernate.loader.Loader.processResultSet(Loader.java:2338)
    at org.hibernate.loader.Loader.getResultSet(Loader.java:2294)
    at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2050)
    at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2012)
    at org.hibernate.loader.Loader.doQuery(Loader.java:953)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:354)
    at org.hibernate.loader.Loader.doList(Loader.java:2815)
    at org.hibernate.loader.Loader.doList(Loader.java:2797)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2629)
    at org.hibernate.loader.Loader.list(Loader.java:2624)
    at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:338)
    at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:2123)
    at org.hibernate.internal.AbstractSharedSessionContract.list(AbstractSharedSessionContract.java:1134)
    at org.hibernate.query.internal.NativeQueryImpl.doList(NativeQueryImpl.java:173)
    at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1526)
    at org.hibernate.query.Query.getResultList(Query.java:165)
    at com.app.ecclesiamainframe.service.impl.MembersServiceImpl.findByMembername(MembersServiceImpl.java:63)
    at com.app.ecclesiamainframe.service.impl.MembersServiceImpl$$FastClassBySpringCGLIB$$b6791a90.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:769)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:99)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689)
    at com.app.ecclesiamainframe.service.impl.MembersServiceImpl$$EnhancerBySpringCGLIB$$81c0914a.findByMembername(<generated>)
    at com.app.ecclesiamainframe.controller.MembersController.getMember(MembersController.java:64)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1591)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)
2019-12-19 07:40:21.744  INFO 32472 --- [nio-8084-exec-2] i.StatisticalLoggingSessionEventListener : Session Metrics {
    1250700 nanoseconds spent acquiring 1 JDBC connections;
    0 nanoseconds spent releasing 0 JDBC connections;
    0 nanoseconds spent preparing 0 JDBC statements;
    0 nanoseconds spent executing 0 JDBC statements;
    0 nanoseconds spent executing 0 JDBC batches;
    0 nanoseconds spent performing 0 L2C puts;
    0 nanoseconds spent performing 0 L2C hits;
    0 nanoseconds spent performing 0 L2C misses;
    0 nanoseconds spent executing 0 flushes (flushing a total of 0 entities and 0 collections);
    0 nanoseconds spent executing 0 partial-flushes (flushing a total of 0 entities and 0 collections)
}
2019-12-19 08:39:48.231  WARN 32472 --- [l-1 housekeeper] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Thread starvation or clock leap detected (housekeeper delta=45s935ms542µs800ns).
2019-12-19 08:46:56.149  WARN 32472 --- [l-1 housekeeper] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Thread starvation or clock leap detected (housekeeper delta=3m17s562ms942µs).
2019-12-19 08:46:57.264  WARN 32472 --- [l-2 housekeeper] com.zaxxer.hikari.pool.HikariPool        : HikariPool-2 - Thread starvation or clock leap detected (housekeeper delta=3m17s563ms485µs800ns).

这是我的Membermapping.xml:

<sql-result-set-mapping name="MemberMappingXml">
    <constructor-result target-class="com.app.ecclesiamainframe.entity.Members">
      <column name="memberId" />
      <column name="dcaRegno" />
      <column name="address" />
      <column name="age" />
      <column name="areaId" />
      <column name="birthday" />
      <column name="cellId" />
      <column name="dca" />
      <column name="department" />
      <column name="editor" />
      <column name="firstTime" />
      <column name="gender" />
      <column name="maritalStatus" />
      <column name="memberEmail" />
      <column name="memberHomePhoneNum" />
      <column name="memberMobileNum" />
      <column name="memberName" />
      <column name="note" />
      <column name="secondTime" />      
    </constructor-result>
</sql-result-set-mapping>

这是我的实体类别:

/**
 * 
 */
package com.app.ecclesiamainframe.entity;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.ColumnResult;
import javax.persistence.ConstructorResult;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.SqlResultSetMapping;
import javax.persistence.Table;

import org.hibernate.annotations.Type;
import org.hibernate.annotations.TypeDef;

import com.vladmihalcea.hibernate.type.json.JsonStringType;

import lombok.Data;

/**
 * @author Harry
 *
 */
@Entity
@Table(name="members_tb")
@Data
@TypeDef(
    name = "json", 
    typeClass = JsonStringType.class
)
@SqlResultSetMapping(
    name = "MemberMapping",
    classes = @ConstructorResult(
        targetClass = Members.class,
        columns = {
            @ColumnResult(name = "memberId", type = Long.class),
            @ColumnResult(name = "dcaRegno", type = Long.class),
            @ColumnResult(name = "address"),
            @ColumnResult(name = "age"),
            @ColumnResult(name = "areaId", type = Long.class),
            @ColumnResult(name = "birthday"),
            @ColumnResult(name = "cellId", type = Long.class),
            @ColumnResult(name = "dca"),
            @ColumnResult(name = "department"),
            @ColumnResult(name = "editor"),
            @ColumnResult(name = "firstTime"),
            @ColumnResult(name = "gender"),
            @ColumnResult(name = "maritalStatus"),
            @ColumnResult(name = "memberEmail"),
            @ColumnResult(name = "memberHomePhoneNum", type = Long.class),
            @ColumnResult(name = "memberMobileNum", type = Long.class),
            @ColumnResult(name = "memberName"),
            @ColumnResult(name = "note"),
            @ColumnResult(name = "secondTime")

    }))
public class Members implements Serializable {

    /**
     * 
     */
    public Members() {}


    private static final long serialVersionUID = 1L;

    @Id
    @Column(name="memberId")
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long memberId;

    @Column(name="dcaRegno")
    private Long dcaRegno;

    @Column(name="memberName")
    private String memberName;

    @Column(name="memberMobileNum")
    private Long memberMobileNum;

    @Column(name="memberHomePhoneNum")
    private Long memberHomePhoneNum;

    @Column(name="memberEmail")
    private String memberEmail;

    @Column(name="gender")
    private String gender;

    @Column(name="department")
    private String department;

    @Type(type = "json")
    @Column(columnDefinition = "json",name="address")
    private String address;

    @Column(name="cellId")
    private Long cellId;

    @Column(name="areaId")
    private Long areaId;

    @Column(name="maritalStatus")
    private String maritalStatus;

    @Column(name="age")
    private String age;

    @Column(name="birthday")
    private String birthday;

    @Column(name="firstTime")
    private String firstTime;

    @Column(name="secondTime")
    private String secondTime;

    @Type(type = "json")
    @Column(columnDefinition = "json",name="dca")
    private String dca;

    @Column(name="note")
    private String note;

    @Column(name="editor")
    private String editor;

    public Members(Long memberId,String memberName) {
        this.memberId = memberId;
        this.memberName = memberName;
    }

    public Members(Long memberId,Long dcaRegno,String memberName,Long memberMobileNum,Long memberHomePhoneNum,String memberEmail,String gender,String department,
               String address,Long cellId,Long areaId,String maritalStatus,String age,String birthday,String firstTime,String secondTime,
               String dca,String note,String editor) {

    this.memberId = memberId;
    this.dcaRegno = dcaRegno;
    this.address = address;
    this.age = age;
    this.areaId = areaId;
    this.birthday = birthday;
    this.cellId = cellId;
    this.dca = dca;
    this.department = department;
    this.editor = editor;
    this.firstTime = firstTime;
    this.gender = gender;
    this.maritalStatus = maritalStatus;
    this.memberEmail = memberEmail;
    this.memberHomePhoneNum = memberHomePhoneNum;
    this.memberMobileNum = memberMobileNum;
    this.memberName = memberName;
    this.note = note;
    this.secondTime = secondTime;
  } 
}

这是我的会员服务实施:

@Transactional
@SuppressWarnings("unchecked")
public List<Members> findByMembername(String memberName) 
{
    //return membersDao.findByMemberName(memberName);
     List<Members> members = null;
    try {
         session = HibernateUtil.getSessionFactory().openSession();
         transaction = session.beginTransaction();

      // Native query selecting all columns
         Query query = session.createNativeQuery("SELECT * FROM members_tb where memberName like :memberName","MemberMapping")
                 .setParameter("memberName","%"+memberName+"%"); //named parameter binding 
                members = query.getResultList();
         transaction.commit(); 
      } catch (Exception e) {
         e.printStackTrace();
      } finally {
         if (session != null) {
            session.close();
         }
      }
     // HibernateUtil.shutdown();
      return members;
}   

请问我如何消除错误并设计适当的构造函数???尽管我希望所有列都映射到结果中,但可能不必将每一列都加载到构造函数中。

java mysql spring-boot spring-data-jpa hibernate-mapping
2个回答
1
投票

列出的列与构造函数参数的顺序不同。

Parameters                  Columns
=========================   ==================
Long   memberId             memberId
Long   dcaRegno             dcaRegno
String memberName           address
Long   memberMobileNum      age
Long   memberHomePhoneNum   areaId
String memberEmail          birthday
String gender               cellId
String department           dca
String address              department
Long   cellId               editor
Long   areaId               firstTime
String maritalStatus        gender
String age                  maritalStatus
String birthday             memberEmail
String firstTime            memberHomePhoneNum
String secondTime           memberMobileNum
String dca                  memberName
String note                 note
String editor               secondTime

0
投票

您将为此创建一个构造函数。

[在使用了SqlResultsetMapping的类中创建一个构造函数,并按照与将它们保存在SqlResultsetMapping中相同的顺序保留该构造函数中的变量

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