这是我的休眠POJO类。
StockModel.java
import java.util.Date;
public class StockModel implements java.io.Serializable{
private static final long serialVersionUID = 1L;
private String s_model_id;
private String s_prod_id;
private String s_model_name;
private String s_model_type;
private char c_epos_type;
private String s_model_ver;
private String s_model_cat;
private String s_oem;
private char c_voice_facility;
private char c_actual_distance;
private char c_sim_lock;
private char c_emergency;
private char c_accdacc;
private char c_ignition;
private char c_battery;
private char c_tampering;
private char c_overspeed;
private char c_fuelknob;
private char c_routedeviation;
private char c_swipedetection;
private char c_circular_geofence;
private char c_polygonal_geofence;
private char c_gps_antennae;
private char c_gsm_antennae;
private char c_adc;
private char c_accident_data;
private char c_is_active = 'Y';
private String s_created_by;
private Date dt_created;
private String s_modified_by;
private Date dt_modified;
private char c_is_deleted = 'N';
/**
* @return the s_model_id
*/
public String getS_model_id() {
return s_model_id;
}
/**
* @param s_model_id the s_model_id to set
*/
public void setS_model_id(String s_model_id) {
this.s_model_id = s_model_id;
}
/**
* @return the s_prod_id
*/
public String getS_prod_id() {
return s_prod_id;
}
/**
* @param s_prod_id the s_prod_id to set
*/
public void setS_prod_id(String s_prod_id) {
this.s_prod_id = s_prod_id;
}
/**
* @return the s_model_name
*/
public String getS_model_name() {
return s_model_name;
}
/**
* @param s_model_name the s_model_name to set
*/
public void setS_model_name(String s_model_name) {
this.s_model_name = s_model_name;
}
/**
* @return the s_model_type
*/
public String getS_model_type() {
return s_model_type;
}
/**
* @param s_model_type the s_model_type to set
*/
public void setS_model_type(String s_model_type) {
this.s_model_type = s_model_type;
}
/**
* @return the c_epos_type
*/
public char getC_epos_type() {
return c_epos_type;
}
/**
* @param c_epos_type the c_epos_type to set
*/
public void setC_epos_type(char c_epos_type) {
this.c_epos_type = c_epos_type;
}
/**
* @return the s_model_ver
*/
public String getS_model_ver() {
return s_model_ver;
}
/**
* @param s_model_ver the s_model_ver to set
*/
public void setS_model_ver(String s_model_ver) {
this.s_model_ver = s_model_ver;
}
/**
* @return the s_model_cat
*/
public String getS_model_cat() {
return s_model_cat;
}
/**
* @param s_model_cat the s_model_cat to set
*/
public void setS_model_cat(String s_model_cat) {
this.s_model_cat = s_model_cat;
}
/**
* @return the s_oem
*/
public String getS_oem() {
return s_oem;
}
/**
* @param s_oem the s_oem to set
*/
public void setS_oem(String s_oem) {
this.s_oem = s_oem;
}
/**
* @return the c_voice_facility
*/
public char getC_voice_facility() {
return c_voice_facility;
}
/**
* @param c_voice_facility the c_voice_facility to set
*/
public void setC_voice_facility(char c_voice_facility) {
this.c_voice_facility = c_voice_facility;
}
/**
* @return the c_actual_distance
*/
public char getC_actual_distance() {
return c_actual_distance;
}
/**
* @param c_actual_distance the c_actual_distance to set
*/
public void setC_actual_distance(char c_actual_distance) {
this.c_actual_distance = c_actual_distance;
}
/**
* @return the c_sim_lock
*/
public char getC_sim_lock() {
return c_sim_lock;
}
/**
* @param c_sim_lock the c_sim_lock to set
*/
public void setC_sim_lock(char c_sim_lock) {
this.c_sim_lock = c_sim_lock;
}
/**
* @return the c_emergency
*/
public char getC_emergency() {
return c_emergency;
}
/**
* @param c_emergency the c_emergency to set
*/
public void setC_emergency(char c_emergency) {
this.c_emergency = c_emergency;
}
/**
* @return the c_accdacc
*/
public char getC_accdacc() {
return c_accdacc;
}
/**
* @param c_accdacc the c_accdacc to set
*/
public void setC_accdacc(char c_accdacc) {
this.c_accdacc = c_accdacc;
}
/**
* @return the c_ignition
*/
public char getC_ignition() {
return c_ignition;
}
/**
* @param c_ignition the c_ignition to set
*/
public void setC_ignition(char c_ignition) {
this.c_ignition = c_ignition;
}
/**
* @return the c_battery
*/
public char getC_battery() {
return c_battery;
}
/**
* @param c_battery the c_battery to set
*/
public void setC_battery(char c_battery) {
this.c_battery = c_battery;
}
/**
* @return the c_tampering
*/
public char getC_tampering() {
return c_tampering;
}
/**
* @param c_tampering the c_tampering to set
*/
public void setC_tampering(char c_tampering) {
this.c_tampering = c_tampering;
}
/**
* @return the c_overspeed
*/
public char getC_overspeed() {
return c_overspeed;
}
/**
* @param c_overspeed the c_overspeed to set
*/
public void setC_overspeed(char c_overspeed) {
this.c_overspeed = c_overspeed;
}
/**
* @return the c_fuelknob
*/
public char getC_fuelknob() {
return c_fuelknob;
}
/**
* @param c_fuelknob the c_fuelknob to set
*/
public void setC_fuelknob(char c_fuelknob) {
this.c_fuelknob = c_fuelknob;
}
/**
* @return the c_routedeviation
*/
public char getC_routedeviation() {
return c_routedeviation;
}
/**
* @param c_routedeviation the c_routedeviation to set
*/
public void setC_routedeviation(char c_routedeviation) {
this.c_routedeviation = c_routedeviation;
}
/**
* @return the c_swipedetection
*/
public char getC_swipedetection() {
return c_swipedetection;
}
/**
* @param c_swipedetection the c_swipedetection to set
*/
public void setC_swipedetection(char c_swipedetection) {
this.c_swipedetection = c_swipedetection;
}
/**
* @return the c_is_active
*/
public char getC_is_active() {
return c_is_active;
}
/**
* @param c_is_active the c_is_active to set
*/
public void setC_is_active(char c_is_active) {
this.c_is_active = c_is_active;
}
/**
* @return the s_created_by
*/
public String getS_created_by() {
return s_created_by;
}
/**
* @param s_created_by the s_created_by to set
*/
public void setS_created_by(String s_created_by) {
this.s_created_by = s_created_by;
}
/**
* @return the dt_created
*/
public Date getDt_created() {
return dt_created;
}
/**
* @param dt_created the dt_created to set
*/
public void setDt_created(Date dt_created) {
this.dt_created = dt_created;
}
/**
* @return the s_modified_by
*/
public String getS_modified_by() {
return s_modified_by;
}
/**
* @param s_modified_by the s_modified_by to set
*/
public void setS_modified_by(String s_modified_by) {
this.s_modified_by = s_modified_by;
}
/**
* @return the dt_modified
*/
public Date getDt_modified() {
return dt_modified;
}
/**
* @param dt_modified the dt_modified to set
*/
public void setDt_modified(Date dt_modified) {
this.dt_modified = dt_modified;
}
/**
* @return the c_is_deleted
*/
public char getC_is_deleted() {
return c_is_deleted;
}
/**
* @param c_is_deleted the c_is_deleted to set
*/
public void setC_is_deleted(char c_is_deleted) {
this.c_is_deleted = c_is_deleted;
}
/**
* @return the c_circular_geofence
*/
public char getC_circular_geofence() {
return c_circular_geofence;
}
/**
* @param c_circular_geofence the c_circular_geofence to set
*/
public void setC_circular_geofence(char c_circular_geofence) {
this.c_circular_geofence = c_circular_geofence;
}
/**
* @return the c_polygonal_geofence
*/
public char getC_polygonal_geofence() {
return c_polygonal_geofence;
}
/**
* @param c_polygonal_geofence the c_polygonal_geofence to set
*/
public void setC_polygonal_geofence(char c_polygonal_geofence) {
this.c_polygonal_geofence = c_polygonal_geofence;
}
/**
* @return the c_gps_antennae
*/
public char getC_gps_antennae() {
return c_gps_antennae;
}
/**
* @param c_gps_antennae the c_gps_antennae to set
*/
public void setC_gps_antennae(char c_gps_antennae) {
this.c_gps_antennae = c_gps_antennae;
}
/**
* @return the c_gsm_antennae
*/
public char getC_gsm_antennae() {
return c_gsm_antennae;
}
/**
* @param c_gsm_antennae the c_gsm_antennae to set
*/
public void setC_gsm_antennae(char c_gsm_antennae) {
this.c_gsm_antennae = c_gsm_antennae;
}
/**
* @return the c_adc
*/
public char getC_adc() {
return c_adc;
}
/**
* @param c_adc the c_adc to set
*/
public void setC_adc(char c_adc) {
this.c_adc = c_adc;
}
/**
* @return the c_accident_data
*/
public char getC_accident_data() {
return c_accident_data;
}
/**
* @param c_accident_data the c_accident_data to set
*/
public void setC_accident_data(char c_accident_data) {
this.c_accident_data = c_accident_data;
}
}
这是我的StockModel.hbm.xml文件的代码。
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="com.projectv4.rtt.Hibernate.valueObjects.StockModel" table="syn_model">
<id name="s_model_id" column="S_MODEL_ID">
<generator class="assigned"></generator>
</id>
<property name="s_prod_id" >
<column name="S_PROD_ID"></column>
</property>
<property name="s_model_name" not-null="true">
<column name="S_MODEL_NAME"></column>
</property>
<!-- <property name="s_model_type" >
<column name="S_MODEL_TYPE"></column>
</property> -->
<property name="c_epos_type" length="1">
<column name="C_EPOS_TYPE" length="1"></column>
</property>
<property name="s_model_ver" >
<column name="S_MODEL_VER"></column>
</property>
<property name="s_model_cat" >
<column name="S_MODEL_CAT"></column>
</property>
<property name="s_oem" >
<column name="S_OEM"></column>
</property>
<property name="c_voice_facility" type="char" length="1">
<column name="C_VOICE_FACILITY" length="1" default="N"></column>
</property>
<property name="c_actual_distance" type="char" length="1">
<column name="C_ACTUAL_DISTANCE" length="1" default="N"></column>
</property>
<property name="c_sim_lock" type="char" length="1">
<column name="C_SIM_LOCK" length="1" default="N"></column>
</property>
<property name="c_emergency" type="char" length="1">
<column name="C_EMERGENCY" length="1" default="N"></column>
</property>
<property name="c_accdacc" type="char" length="1">
<column name="C_ACCDACC" length="1" default="N"></column>
</property>
<property name="c_ignition" type="char" length="1">
<column name="C_IGNITION" length="1" default="N"></column>
</property>
<property name="c_battery" type="char" length="1">
<column name="C_BATTERY" length="1" default="N"></column>
</property>
<property name="c_tampering" type="char" length="1">
<column name="C_TAMPERING" length="1" default="N"></column>
</property>
<property name="c_overspeed" type="char" length="1">
<column name="C_OVERSPEED" length="1" default="N"></column>
</property>
<property name="c_fuelknob" type="char" length="1">
<column name="C_FUELKNOB" length="1" default="N"></column>
</property>
<property name="c_routedeviation" type="char" length="1">
<column name="C_ROUTEDEVIATION" length="1" default="N"></column>
</property>
<property name="c_swipedetection" type="char" length="1">
<column name="C_SWIPEDETECTION" length="1" default="N"></column>
</property>
<property name="c_circular_geofence" type="char" length="1">
<column name="C_CIRCULAR_GEOFENCE" length="1" default="N"></column>
</property>
<property name="c_polygonal_geofence" type="char" length="1">
<column name="C_POLYGONAL_GEOFENCE" length="1" default="N"></column>
</property>
<property name="c_gps_antennae" type="char" length="1">
<column name="C_GPS_ANTENNAE" length="1"></column>
</property>
<property name="c_gsm_antennae" type="char" length="1">
<column name="C_GSM_ANTENNAE" length="1"></column>
</property>
<property name="c_adc" type="char" length="1">
<column name="C_ADC" length="1" default="N"></column>
</property>
<property name="c_accident_data" type="char" length="1">
<column name="C_ACCIDENT_DATA" length="1" default="N"></column>
</property>
<property name="c_is_active" type="char" length="1">
<column name="C_IS_ACTIVE" length="1" default="Y"></column>
</property>
<property name="s_created_by" >
<column name="S_CREATED_BY"></column>
</property>
<property name="dt_created" type="timestamp">
<column name="DT_CREATED" sql-type="datetime" default="SYSDATE"></column>
</property>
<property name="s_modified_by" >
<column name="S_MODIFIED_BY"></column>
</property>
<property name="dt_modified" type="timestamp">
<column name="DT_MODIFIED" sql-type="datetime"></column>
</property>
<property name="c_is_deleted" type="char">
<column name="C_IS_DELETED"></column>
</property>
</class>
</hibernate-mapping>
表SYN_MODEL映射到v4stock.tbl_model
The Database structure can be defined as below -
Table "v4stock.tbl_model"
Column | Type | Modifiers
----------------------+-----------------------------+----------------------------------
s_model_id | character varying(20) | not null
s_prod_id | character varying(3) |
s_model_name | character varying(60) | not null
s_model_type | character varying(5) |
c_epos_type | character(1) |
s_model_ver | character varying(50) |
s_model_cat | character varying(50) |
s_oem | character varying(50) |
c_voice_facility | character(1) | default 'N'::bpchar
c_actual_distance | character(1) | default 'N'::bpchar
c_sim_lock | character(1) | default 'N'::bpchar
c_emergency | character(1) | default 'N'::bpchar
c_accdacc | character(1) | default 'N'::bpchar
c_ignition | character(1) | default 'N'::bpchar
c_battery | character(1) | default 'N'::bpchar
c_tampering | character(1) | default 'N'::bpchar
c_overspeed | character(1) | default 'N'::bpchar
c_fuelknob | character(1) | default 'N'::bpchar
c_routedeviation | character(1) | default 'N'::bpchar
c_swipedetection | character(1) | default 'N'::bpchar
c_flag_1 | character(1) | default 'N'::bpchar
c_flag_2 | character(1) | default 'N'::bpchar
c_flag_3 | character(1) | default 'N'::bpchar
c_flag_4 | character(1) | default 'N'::bpchar
c_flag_5 | character(1) | default 'N'::bpchar
c_is_active | character(1) | default 'Y'::bpchar
s_created_by | character varying(60) | default 'SYS'::character varying
dt_created | timestamp without time zone | default sysdate
s_modified_by | character varying(60) |
dt_modified | timestamp without time zone |
c_is_deleted | character(1) | default 'N'::bpchar
c_circular_geofence | character(1) | default 'N'::bpchar
c_polygonal_geofence | character(1) | default 'N'::bpchar
c_gps_antennae | character(1) |
c_gsm_antennae | character(1) |
c_adc | character(1) | default 'N'::bpchar
c_accident_data | character(1) | default 'N'::bpchar
Indexes:
"pk_model" PRIMARY KEY, btree (s_model_id)
"uk_model" UNIQUE CONSTRAINT, btree (s_model_name)
"idx_tbl_model_model_id" btree (s_model_id)
Check constraints:
"chk_gps_antennae" CHECK (c_gps_antennae = ANY (ARRAY['I'::bpchar, 'E'::bpchar]))
"chk_gsm_antennae" CHECK (c_gsm_antennae = ANY (ARRAY['I'::bpchar, 'E'::bpchar]))
"chk_model_epos_type" CHECK (c_epos_type = ANY (ARRAY['E'::bpchar, 'G'::bpchar, 'N'::bpchar]))
Foreign-key constraints:
"fk_model" FOREIGN KEY (s_prod_id) REFERENCES v4stock.tbl_product_mst(s_prod_id) MATCH FULL
Referenced by:
TABLE "v4alert.tbl_event_alert" CONSTRAINT "fk_alert_model" FOREIGN KEY (s_model_id) REFERENCES v4stock.tbl_model(s_model_id) MATCH FULL
TABLE "v4stock.tbl_lab_stock" CONSTRAINT "fk_v4_lab_stock" FOREIGN KEY (s_model_id) REFERENCES v4stock.tbl_model(s_model_id) MATCH FULL
当进行休眠调用以访问StockModel时，出现以下异常。
ERROR [STDERR] (http-127.0.0.1-8080-8) org.hibernate.PropertyAccessException: exception setting property value with CGLIB (set hibernate.cglib.use_reflection_optimizer=false for more info) setter of com.projectv4.rtt.Hibernate.valueObjects.StockModel.setC_gps_antennae
at org.hibernate.tuple.PojoEntityTuplizer.setPropertyValuesWithOptimizer(PojoEntityTuplizer.java:215)
at org.hibernate.tuple.PojoEntityTuplizer.setPropertyValues(PojoEntityTuplizer.java:185)
at org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:3232)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:129)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
at org.hibernate.loader.Loader.doQuery(Loader.java:717)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2145)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
at org.hibernate.loader.Loader.list(Loader.java:2024)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:375)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:308)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1106)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:749)
at com.projectv4.rtt.struts.stock.dao.ModelDataDAO.GetModelData(ModelDataDAO.java:87)
at com.projectv4.rtt.struts.stock.dao.ModelDataProcess.ProcessGetStockModel(ModelDataProcess.java:121)
at com.projectv4.rtt.struts.stock.action.ModelActions.execute(ModelActions.java:71)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:183)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:95)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.internalProcess(ActiveRequestResponseCacheValve.java:74)
at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.invoke(ActiveRequestResponseCacheValve.java:47)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:599)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:451)
at java.lang.Thread.run(Thread.java:679)
Caused by: net.sf.cglib.beans.BulkBeanException
at com.projectv4.rtt.Hibernate.valueObjects.StockModel$$BulkBeanByCGLIB$$2bd06510.setPropertyValues(<generated>)
at org.hibernate.tuple.PojoEntityTuplizer.setPropertyValuesWithOptimizer(PojoEntityTuplizer.java:212)
... 46 more
Caused by: java.lang.NullPointerException
... 48 more
谁能帮我哪里错了？
我已经检查了PropertyAccessException的可能原因，例如安全检查失败，在getter或setter方法内部发生异常，可为空的数据库列映射到原始类型属性，Hibernate类型无法转换为属性类型（或反之亦然），但仍然无法找出此错误的确切原因。
最佳答案
该错误的主要原因是由于数据库中原始类型数据类型c_gps_antennae（属于char类型）与Null值的映射所致。由于基元不能为null，因此无法将其映射到可为空的列。
在数据库中查询c_gps_antennae将返回以下信息。
select c_gps_antennae from v4stock.tbl_model;
c_gps_antennae
----------------
(6 rows)
而StockModel.hbm.xml如下所示...
<property name="c_gps_antennae" type="char" length="1">
<column name="C_GPS_ANTENNAE" length="1"></column>
</property>