Java 抽象实体持久化器方法获取属性值类中存在非法参数异常 我在DAO类对象[]属性值变量getPropertyValues方法（Object对象，EntityMode.Pojo）上遇到错误；这是基于属性名称访问属性值的正确方法吗？请告诉我哪里出错了 使用Hibernate core 3.6.1 Final.jar

我的完整堆栈跟踪：

  [ERROR] IllegalArgumentException in class: com.zpmc.ecs.domain.ExportReport, getter method of property: description       -  (BasicPropertyAccessor.java:194) 
org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.zpmc.ecs.domain.ExportReport.description
    at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:198)
    at org.hibernate.tuple.entity.AbstractEntityTuplizer.getPropertyValues(AbstractEntityTuplizer.java:482)
    at org.hibernate.tuple.entity.PojoEntityTuplizer.getPropertyValues(PojoEntityTuplizer.java:241)
    at org.hibernate.persister.entity.AbstractEntityPersister.getPropertyValues(AbstractEntityPersister.java:3857)
    at com.zpmc.ecs.autoexportbean.AutoExportListenerService.getAllTables(AutoExportListenerService.java:327)
    at com.zpmc.ecs.autoexportbean.AutoExportListenerService.buildReport(AutoExportListenerService.java:154)
    at com.zpmc.ecs.autoexportbean.AutoExportListenerService.getAutoExportExcel(AutoExportListenerService.java:130)
    at com.zpmc.ecs.autoexportbean.MyTask.run(AutoExportListenerBean.java:137)
    at java.util.TimerThread.mainLoop(Timer.java:555)
    at java.util.TimerThread.run(Timer.java:505)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:172)
    ... 9 more

    @Entity
@Table(name ="T_KPI_AUTO_EXPORT_CONFIG")
public class ExportReport implements Serializable  {
private String description;
@Column(name ="Description", nullable = false)
    public String getDescription() {
        return description;
    }
    public void setDescription(String description) {
        this.description = description;
    }
}

public List <String> getAllTables() throws SQLException {
 Map<String, ClassMetadata> classMetaDataMap = hibernateTemplate.getSessionFactory().getAllClassMetadata();
         for(Map.Entry<String, ClassMetadata> metaDataMap : classMetaDataMap.entrySet()) {
ClassMetadata classMetadata = metaDataMap.getValue();
                AbstractEntityPersister abstractEntityPersister = (AbstractEntityPersister) classMetadata;
                tableName = abstractEntityPersister.getTableName();
String[] propertyNames = abstractEntityPersister.getPropertyNames();
  for(int i=0;i<propertyNames.length;i++){

                    Object[] propertyvalue =abstractEntityPersister.getPropertyValues(ExportReport.class,EntityMode.POJO);


                    System.out.println(propertyType+"Columns: " + propertyNames+"ddddd"+propertyvalue);
                      System.out.println(propertyNames[i]);
                      System.out.println(propertyvalue[i]);
                  }

}
}

Pojo类：

  [ERROR] IllegalArgumentException in class: com.zpmc.ecs.domain.ExportReport, getter method of property: description       -  (BasicPropertyAccessor.java:194) 
org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.zpmc.ecs.domain.ExportReport.description
    at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:198)
    at org.hibernate.tuple.entity.AbstractEntityTuplizer.getPropertyValues(AbstractEntityTuplizer.java:482)
    at org.hibernate.tuple.entity.PojoEntityTuplizer.getPropertyValues(PojoEntityTuplizer.java:241)
    at org.hibernate.persister.entity.AbstractEntityPersister.getPropertyValues(AbstractEntityPersister.java:3857)
    at com.zpmc.ecs.autoexportbean.AutoExportListenerService.getAllTables(AutoExportListenerService.java:327)
    at com.zpmc.ecs.autoexportbean.AutoExportListenerService.buildReport(AutoExportListenerService.java:154)
    at com.zpmc.ecs.autoexportbean.AutoExportListenerService.getAutoExportExcel(AutoExportListenerService.java:130)
    at com.zpmc.ecs.autoexportbean.MyTask.run(AutoExportListenerBean.java:137)
    at java.util.TimerThread.mainLoop(Timer.java:555)
    at java.util.TimerThread.run(Timer.java:505)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:172)
    ... 9 more

    @Entity
@Table(name ="T_KPI_AUTO_EXPORT_CONFIG")
public class ExportReport implements Serializable  {
private String description;
@Column(name ="Description", nullable = false)
    public String getDescription() {
        return description;
    }
    public void setDescription(String description) {
        this.description = description;
    }
}

public List <String> getAllTables() throws SQLException {
 Map<String, ClassMetadata> classMetaDataMap = hibernateTemplate.getSessionFactory().getAllClassMetadata();
         for(Map.Entry<String, ClassMetadata> metaDataMap : classMetaDataMap.entrySet()) {
ClassMetadata classMetadata = metaDataMap.getValue();
                AbstractEntityPersister abstractEntityPersister = (AbstractEntityPersister) classMetadata;
                tableName = abstractEntityPersister.getTableName();
String[] propertyNames = abstractEntityPersister.getPropertyNames();
  for(int i=0;i<propertyNames.length;i++){

                    Object[] propertyvalue =abstractEntityPersister.getPropertyValues(ExportReport.class,EntityMode.POJO);


                    System.out.println(propertyType+"Columns: " + propertyNames+"ddddd"+propertyvalue);
                      System.out.println(propertyNames[i]);
                      System.out.println(propertyvalue[i]);
                  }

}
}

DAO类方法：

  [ERROR] IllegalArgumentException in class: com.zpmc.ecs.domain.ExportReport, getter method of property: description       -  (BasicPropertyAccessor.java:194) 
org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.zpmc.ecs.domain.ExportReport.description
    at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:198)
    at org.hibernate.tuple.entity.AbstractEntityTuplizer.getPropertyValues(AbstractEntityTuplizer.java:482)
    at org.hibernate.tuple.entity.PojoEntityTuplizer.getPropertyValues(PojoEntityTuplizer.java:241)
    at org.hibernate.persister.entity.AbstractEntityPersister.getPropertyValues(AbstractEntityPersister.java:3857)
    at com.zpmc.ecs.autoexportbean.AutoExportListenerService.getAllTables(AutoExportListenerService.java:327)
    at com.zpmc.ecs.autoexportbean.AutoExportListenerService.buildReport(AutoExportListenerService.java:154)
    at com.zpmc.ecs.autoexportbean.AutoExportListenerService.getAutoExportExcel(AutoExportListenerService.java:130)
    at com.zpmc.ecs.autoexportbean.MyTask.run(AutoExportListenerBean.java:137)
    at java.util.TimerThread.mainLoop(Timer.java:555)
    at java.util.TimerThread.run(Timer.java:505)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:172)
    ... 9 more

    @Entity
@Table(name ="T_KPI_AUTO_EXPORT_CONFIG")
public class ExportReport implements Serializable  {
private String description;
@Column(name ="Description", nullable = false)
    public String getDescription() {
        return description;
    }
    public void setDescription(String description) {
        this.description = description;
    }
}

public List <String> getAllTables() throws SQLException {
 Map<String, ClassMetadata> classMetaDataMap = hibernateTemplate.getSessionFactory().getAllClassMetadata();
         for(Map.Entry<String, ClassMetadata> metaDataMap : classMetaDataMap.entrySet()) {
ClassMetadata classMetadata = metaDataMap.getValue();
                AbstractEntityPersister abstractEntityPersister = (AbstractEntityPersister) classMetadata;
                tableName = abstractEntityPersister.getTableName();
String[] propertyNames = abstractEntityPersister.getPropertyNames();
  for(int i=0;i<propertyNames.length;i++){

                    Object[] propertyvalue =abstractEntityPersister.getPropertyValues(ExportReport.class,EntityMode.POJO);


                    System.out.println(propertyType+"Columns: " + propertyNames+"ddddd"+propertyvalue);
                      System.out.println(propertyNames[i]);
                      System.out.println(propertyvalue[i]);
                  }

}
}

public List getAllTables（）引发SQLException{
Map classMetaDataMap=hibernateTemplate.getSessionFactory（）.getAllClassMetadata（）；
对于（Map.Entry metaDataMap:classMetaDataMap.entrySet（））{
ClassMetadata ClassMetadata=metaDataMap.getValue（）；
AbstractEntityPersister AbstractEntityPersister=（AbstractEntityTypersister）类元数据；
tableName=abstractEntityPersister.getTableName（）；
字符串[]propertyNames=abstractEntityPersister.getPropertyNames（）；
对于（int i=0；i可能重复感谢您回复我，实际上我想使用hibernate从数据库中获取数据？我没有获得结果，请告诉我任何其他方法？您想如何获取数据，从哪个表中获取数据，在查询中需要什么道具？使用哪个数据库？我使用oracle数据库，我需要获取所有数据库表的数据。E例如：就像使用jdbc模板一样，但是我使用hibernate模板的要求让我知道这可能吗？上面的代码我使用getAllClassMetada获取所有表。为什么要一次获取数据库中的所有表？有什么特殊原因吗？建议在需要时获取数据。因为使用hibernate，所以可以获取所有子表当您使用
FetchType.Eager
请求父级时，我建议您使用
hibernateTemplate.find（sqlQuery）；
从数据库获取表。