NullPointException

jariy · 发表于 2011-7-15 18:16:22

本帖最后由 shary 于 2011-7-27 10:44 编辑

如下图，我在前台用alert()能看到docid是有值的，并且这个docid的值我在查询分析器里能查到数据，可是当一提交，tomcat控制台就报NullPointException，点解?
1.

2.下面是我写在表单里的js

var str="";
var _mid=getItemValueAsString("RS_C_MONTHTOTALDETAIL_MID");
var _formid=getItemValueAsString("RS_C_MONTHTOTALDETAIL_MFORMID");
var temp="javascript:viewDocTotal('"+_mid+"', '"+_formid+"', 'false','&_fromMode=MONTHTOTAL')";
str='<a href="'+temp+'" target="detail">查看</a>';
str;

复制代码

function viewDocTotal(docid, formid ,signatureExist) {
var url = contextPath + '/portal/dynaform/document/view.action';
url += '?_docid=' + docid;
if (formid) {
url += '&_formid=' + formid;
}
if(signatureExist){
url += '&signatureExist=' + signatureExist;
}
alert(url);
document.forms[0].action = url;
document.forms[0].submit();
}

复制代码

3.

18:10:37,656 INFO AbstractDocStaticTblDAO:1010 - MS SQL Server: SELECT COUNT(*)
FROM (select * from gzjwoa.dbo.TLK_RS_C_MONTHSINGLE where id='null') doc WHERE
doc.DOMAINID ='11e0-77b6-a15f5ed8-8bab-dbeda105460c'
java.lang.NullPointerException
at cn.myapps.base.ejb.AbstractRunTimeProcessBean.getDataSource(AbstractR
unTimeProcessBean.java:236)
at cn.myapps.base.ejb.AbstractRunTimeProcessBean.getConnection(AbstractR
unTimeProcessBean.java:279)
at cn.myapps.core.workflow.storage.runtime.ejb.RelationHISProcessBean.ge
tDAO(RelationHISProcessBean.java:28)
at cn.myapps.core.workflow.storage.runtime.ejb.RelationHISProcessBean.do
Query(RelationHISProcessBean.java:47)
at cn.myapps.core.workflow.engine.StateMachineHelper.getAllRelationHIS(S
tateMachineHelper.java:222)
at cn.myapps.core.workflow.engine.StateMachineHelper.toHistoryHtml(State
MachineHelper.java:1096)
at org.apache.jsp.portal.gray_005ftest2.dynaform.document.content_jsp._j
spService(content_jsp.java:1690)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:393)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
20)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDisp
atcher.java:654)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(Applica
tionDispatcher.java:445)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationD
ispatcher.java:379)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDis
patcher.java:292)
at com.opensymphony.webwork.dispatcher.ServletDispatcherResult.doExecute
(ServletDispatcherResult.java:114)
at cn.myapps.base.web.ServletResult.OBPMServletDispatcherResult.doExecut
e(OBPMServletDispatcherResult.java:32)
at com.opensymphony.webwork.dispatcher.WebWorkResultSupport.execute(WebW
orkResultSupport.java:101)
at com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultA
ctionInvocation.java:312)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionIn
vocation.java:207)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(Around
Interceptor.java:31)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionIn
vocation.java:189)
at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.
java:113)
at com.opensymphony.webwork.dispatcher.DispatcherUtils.serviceAction(Dis
patcherUtils.java:233)
at com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterD
ispatcher.java:198)
at cn.myapps.base.web.filter.OBPMFilterDispatcher.doFilter(OBPMFilterDis
patcher.java:43)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at com.opensymphony.webwork.dispatcher.ActionContextCleanUp.doFilter(Act
ionContextCleanUp.java:78)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at cn.myapps.base.web.filter.AjaxMultiLanguageFilter.doFilter(AjaxMultiL
anguageFilter.java:42)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at cn.myapps.base.web.filter.PersistenceFilter.doFilter(PersistenceFilte
r.java:30)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at cn.myapps.base.web.filter.SecurityFilter.doFilter(SecurityFilter.java
:122)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:263)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:584)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44
7)
at java.lang.Thread.run(Thread.java:619)

复制代码

admin · 发表于 2011-7-18 11:55:52

您好，您上面再表单写的js,跟下面tomcat报空指针异常的业务关系是怎么样。你的意思是这行完这段js就报错吗？

jariy · 发表于 2011-7-18 12:01:02

document.forms[0].action = url;
document.forms[0].submit();
这是什么？执行完这个当然是提交咯，无论是_docid还是formid我在数据库里查询都存在，我不明白为什么

@SuppressWarnings("unchecked")
public String doView() throws Exception {
Map<String, String> request = (Map<String, String>) ActionContext
.getContext().get("request");
WebUser user = this.getUser();
String _docid = this.getParams().getParameterAsString("_docid");

复制代码

admin · 发表于 2011-7-18 12:08:42

。请问document.forms[0].action = url;
document.forms[0].submit();

你这两句是写在你的一个Jsp页面中还是在平台的函数库中？如果是在平台函数库中不支持这样写。这能写iscript脚本。

jariy · 发表于 2011-7-18 12:24:56

这样写也不行？如果不行的话document.forms[0].action = url;alert(document.forms[0].action);
我的这个alert又是怎么执行的呢？

jariy · 发表于 2011-7-18 12:26:35

我写的这2个viewdoc方法，无论调哪一个都会抛空指针

jariy · 发表于 2011-7-18 14:18:45

看tomcat控制台，一个很奇怪的执行结果，在我页面点击查看链接的时候，只有一个提交动作，为什么会同样的一段sql执行了3次，真是让人费解?

keezzm · 发表于 2011-7-18 14:30:39

尊敬的jariy用户，你好，你的问题是没有找到当前的应用，而抛出的空指针异常，这个问题，我没你的环境我很难做出准确的判断，我只能给出这个答案。

jariy · 发表于 2011-7-18 16:05:50

唉，

哥我泪奔

jariy · 发表于 2011-7-18 17:25:56

非常严重的bug

		自动登录	找回密码
密码			注册成为天翎用户

NullPointException

本帖子中包含更多资源

本帖子中包含更多资源

本帖子中包含更多资源

本帖子中包含更多资源

浏览过的版块