急！在线等，hibernate问题，50分送上！不拿白不拿啊

win720520 2009-05-14 10:12:29

for (Iterator iter = forms.iterator(); iter.hasNext(); ) {
Workform form = (Workform)iter.next();
System.out.println("form============"+form);
session.save(form);
Set refs = form.getFields(); // 是Workform.java的pojo类
System.out.println("refs============"+refs);
if (refs == null&refs.isEmpty())
{

这里我打印出来的
form============com.cyt.oa.workform.model.Workform@7ca9bd[id=<null>]
refs============null
java.lang.NullPointerException

出了个异常
为什么form 后面的 Id 会是null呢 refs的值怎么取不到？

workform.hbm.xml 里面是这么写的

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="com.cyt.oa.workform.model">

	<class name="Workform" table="workform">

		<id column="id" name="id" type="java.lang.Long">

			<generator class="native"/>

		</id>

		<property column="confine" name="confine" type="java.lang.Long"/>

		<property column="name" name="name" type="string"/>

		<property column="version" name="version" type="integer"/>

		<property column="template" name="template" type="string"/>

		<property column="title" name="title" type="string"/>

		<property column="usable" name="usable" type="boolean"/>

		<property column="isjunk" name="isjunk" type="boolean"/>	

		<property column="markfld" name="markfld" type="string"/>		

		<property column="cabeditflds" name="cabeditflds" type="string"/>	

		<property column="allflds" name="allflds" type="string"/>	

		<property column="formulas" name="formulas" type="string"/>	

		<property column="autowater" name="autoWater" type="string"/>			

		<property column="timemark" name="timestamp" type="java.util.Date"/>				

		<set name="fields" table="reference" inverse="true" lazy="true">

			<key column="workformid"/>

			<one-to-many class="com.cyt.oa.workform.model.Reference"/>

		</set>

	</class>

</hibernate-mapping>

...全文

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fangaiwen 2010-06-08

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learning

risingsun_xi 2009-05-16

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MDMLXJ 2009-05-14

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真不会，一起等待!

win720520 2009-05-14

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com.gardenia.deploy.DynamicDeployee.insertWorkform(DynamicDeployee.java:81)//DynamicDeployee.java:81行是什么东西啊
这里就是 if (refs == null&refs.isEmpty()) 这一行啊

Set refs = form.getFields(); 这里取的值

public Set getFields()
{
return fields;
}

public void setFields(Set fields)
{
this.fields = fields;
}

这里去设置的

qsrock 2009-05-14

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if (refs == null&refs.isEmpty())
你这个判断也有问题！如果refs 为null的话旧出异常了

qsrock 2009-05-14

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win720520 2009-05-14

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forms=============[com.cyt.oa.workform.model.Workform@1f75442[id=<null>]]
form============com.cyt.oa.workform.model.Workform@1f75442[id=<null>]
refs============null
java.lang.NullPointerException
at com.gardenia.deploy.DynamicDeployee.insertWorkform(DynamicDeployee.java:81)
at com.gardenia.deploy.DynamicDeployee.deploy(DynamicDeployee.java:42)
at com.gardenia.webservice.UploadClobHelper.uploadClob(UploadClobHelper.java:45)
at com.gardenia.webservice.CFormServiceSoapBindingImpl.uploadClob(CFormServiceSoapBindingImpl.java:307)
at com.gardenia.webservice.CFormServiceSoapBindingImpl.issueCustomForm(CFormServiceSoapBindingImpl.java:130)
at com.gardenia.webservice.CFormServiceSoapBindingSkeleton.issueCustomForm(CFormServiceSoapBindingSkeleton.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:397)
at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:186)
at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:453)
at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281)
at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:699)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
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.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)

qsrock 2009-05-14

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应该有异常吧，异常的详细信息呢？贴出来看看！

建议你调debug,很容易就可以找出哪里出null异常了！

win720520 2009-05-14

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既然拿到了为什么会是个Null, 还有在页面刷新的时候它不是自动刷新跳转的，因为他出窗口后就没了反映了，必须我去刷新下重新打开后正常

qsrock 2009-05-14

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应该拿到id了吧！你说的如果我刷新页面后，得到得结果是正确的，可是在后台就报了这个空指针错，另外页面上
也出了个窗口“org.hibernate.sessionException session was already closed已经是另外的问题了，
session was already closed 说明你把seesion关闭后又调用了session！

win720520 2009-05-14

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这个是那个页面的 js

function issueCForm(){
var ocx=getNestedOCX();
var issued=ocx.issued;
var modified=ocx.Modified;
var changed=ocx.edited;

var saveResult=true;
var issueResult=false;
try{
if(changed) saveResult=(ocx.saveTable()==0); //如果需要，则保存表单
if(saveResult) issueResult=(ocx.issueTable()==0); //保存成功，继续发布表单

}catch(e){

alert(e.message); // 这里出的那个hibernate异常这里不是根本的原因，主要还是那个空指针
return false;
}
if((changed && saveResult) || (issueResult && !issued)){

if(issueResult && !issued){

//页面跳转

window.opener.allforms.submit();
window.alert("表单启用成功!"); //modify by
self.close();

}
}
return true;
}
}

win720520 2009-05-14

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如果正常的话页面弹出的窗口应该是 “表单启用成功！”

win720520 2009-05-14

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还是一样的，其实数据已经保存进去了，我每次运行一次，在数据库中就会多一行记录，其实它运行的结果
已经在数据里了，如果我刷新页面后，得到得结果是正确的，可是在后台就报了这个空指针错，另外页面上
也出了个窗口“org.hibernate.sessionException session was already closed”

qsrock 2009-05-14

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for (Iterator iter = forms.iterator(); iter.hasNext(); ) {
Workform form = (Workform)iter.next();
System.out.println("form============"+form);
session.save(form);
session.flush();
Set refs = form.getFields(); // 是Workform.java的pojo类
System.out.println("refs============"+refs);
if (refs == null&refs.isEmpty())
{

qsrock 2009-05-14

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添加一行看看！

for (Iterator iter = forms.iterator(); iter.hasNext(); ) {

      Workform form = (Workform)iter.next();

      System.out.println("form============"+form);

      session.save(form);

      session.flush();

      Set refs = form.getFields(); //  是Workform.java的pojo类

      System.out.println("refs============"+refs);

      if (refs == null&refs.isEmpty())

      {