我在使用google app engine 出现了问题
Nested in org.apache.jasper.JasperException: java.lang.IllegalArgumentException: com.lh.gae.pojo.ContactInfo is not a supported property type.:
我配置了两个对象的，他们之间是one-to-one的关系出现下面异常
[code="java"]
java.lang.IllegalArgumentException: com.lh.gae.pojo.ContactInfo is not a supported property type.
at com.google.appengine.api.datastore.DataTypeUtils.checkSupportedSingleValue(DataTypeUtils.java:114)
at com.google.appengine.api.datastore.DataTypeUtils.checkSupportedValue(DataTypeUtils.java:103)
at com.google.appengine.api.datastore.Entity.setProperty(Entity.java:257)
at org.datanucleus.store.appengine.DatastoreFieldManager.storeObjectField(DatastoreFieldManager.java:757)
at org.datanucleus.state.AbstractStateManager.providedObjectField(AbstractStateManager.java:1011)
at com.lh.gae.pojo.Employee.jdoProvideField(Employee.java)
at com.lh.gae.pojo.Employee.jdoProvideFields(Employee.java)
at org.datanucleus.state.JDOStateManagerImpl.provideFields(JDOStateManagerImpl.java:2597)
at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject(DatastorePersistenceHandler.java:180)
at org.datanucleus.state.JDOStateManagerImpl.internalMakePersistent(JDOStateManagerImpl.java:3067)
at org.datanucleus.state.JDOStateManagerImpl.makePersistent(JDOStateManagerImpl.java:3043)
at org.datanucleus.ObjectManagerImpl.persistObjectInternal(ObjectManagerImpl.java:1258)
at org.datanucleus.ObjectManagerImpl.persistObject(ObjectManagerImpl.java:1135)
at org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:668)
at org.datanucleus.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:693)
at com.lh.gae.dao.DaoUtil.getEmpList(DaoUtil.java:52)
at org.apache.jsp.HelloWorld_jsp._jspService(HelloWorld_jsp.java:60)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at com.google.appengine.tools.development.PrivilegedJspServlet.access$101(PrivilegedJspServlet.java:23)
at com.google.appengine.tools.development.PrivilegedJspServlet$2.run(PrivilegedJspServlet.java:59)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.appengine.tools.development.PrivilegedJspServlet.service(PrivilegedJspServlet.java:57)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093)
at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:54)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:306)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:830)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
2009-7-13 7:58:55 com.google.apphosting.utils.jetty.JettyLogger warn
[/code]
Employee.java
[code="java"]
package com.lh.gae.pojo;
import java.util.Date;
import javax.jdo.annotations.IdGeneratorStrategy;
import javax.jdo.annotations.IdentityType;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Persistent;
import javax.jdo.annotations.PrimaryKey;
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Employee {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long id;
@Persistent
private String firstName;
@Persistent
private String lastName;
@Persistent
private Date hireDate;
@Persistent
private ContactInfo contactInfo;
public Employee(String firstName, String lastName, Date hireDate) {
this.firstName = firstName;
this.lastName = lastName;
this.hireDate = hireDate;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Date getHireDate() {
return hireDate;
}
public void setHireDate(Date hireDate) {
this.hireDate = hireDate;
}
public ContactInfo getContactInfo() {
return contactInfo;
}
public void setContactInfo(ContactInfo contactInfo) {
this.contactInfo = contactInfo;
}
}
[/code]
ContactInfo.java
[code="java"]
package com.lh.gae.pojo;
import javax.jdo.annotations.IdGeneratorStrategy;
import javax.jdo.annotations.Persistent;
import javax.jdo.annotations.PrimaryKey;
import com.google.appengine.api.datastore.Key;
public class ContactInfo {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private String streetAddress;
@Persistent(mappedBy = "contactInfo")
private Employee employee;
public Key getKey() {
return key;
}
public void setKey(Key key) {
this.key = key;
}
public String getStreetAddress() {
return streetAddress;
}
public void setStreetAddress(String streetAddress) {
this.streetAddress = streetAddress;
}
public Employee getEmployee() {
return employee;
}
public void setEmployee(Employee employee) {
this.employee = employee;
}
}
[/code]
JDO代码
[code="java"]
PersistenceManager pm = PMF.get().getPersistenceManager();
ContactInfo info = new ContactInfo();
info.setStreetAddress("北京");
Employee ep = new Employee("程","小龙",new Date());
ep.setContactInfo(info);
Transaction tx = pm.currentTransaction();
tx.begin();
pm.makePersistent(ep);
tx.commit();
[/code]
不知道这是为什么。
[b]问题补充：[/b]
我的关联关系是照着google 的文档上粘下来的应该没问题
http://code.google.com/intl/zh-CN/appengine/docs/java/datastore/relationships.html#Owned_One_to_One_Relationships
