Hi all,
In the jsp page "ProjectsFound.jsp" I obtain the list of all projects in a
DB and I have two bottoms (edit and add groups).
If I click on Add Groups, I want to show in the new page (addGroups.jsp) the
name of the project and a list of all groups
in order to select all which I want to link (I have a many-to-many relation
in the DB).
I get the name of the project without problem with the line:
<input type="text" name="name" value="<bean:write name="activeProject"
property="name"/>"/>
but when I want to show all rows of table group,
<logic:iterate name="listAllGroups" id="group">
<bean:write name="group" property="idGroup"/>
</logic:iterate>
where listAllGroups is a Collection saved in session:
GroupBean bgb = new GroupBean(getDataSource(request,"project"));
Collection groups = bgb.getAllGroups();
session.setAttribute("listAllGroups",groups);
I get the error:
org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:370)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1062)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
java.lang.NullPointerException
org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1109)
org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:686)
org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:715)
org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:290)
org.apache.struts.taglib.TagUtils.lookup(TagUtils.java:950)
org.apache.struts.taglib.bean.WriteTag.doStartTag(WriteTag.java:225)
org.apache.jsp.Menus.Admin.agregarGruposAProyecto_jsp._jspx_meth_bean_write_2(org.apache.jsp.Menus.Admin.agregarGruposAProyecto_jsp:446)
org.apache.jsp.Menus.Admin.agregarGruposAProyecto_jsp._jspService(org.apache.jsp.Menus.Admin.agregarGruposAProyecto_jsp:199)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1062)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
In my struts-config.xml file I have:
<form-bean name="addGroupToProjectForm"
type="org.apache.struts.validator.DynaValidatorForm">
<form-property name="idProject" type="java.lang.String"/>
<form-property name="name" type="java.lang.String"/>
<form-property name="idGroup" type="java.util.String"/>
</form-bean>
<action
name="addGroupToProjectForm" parameter="accion" path="/addGroupToProject"
scope="request" type="project.struts.Actions.Admin.ProjectAction"
validate="false">
<forward name="addGroups" path="/Menus/Admin/viewDataProject.jsp"/>
<forward name="notAddGroups" path="/Menus/Admin/error.jsp"/>
</action>
Could anyone help me?
Thanks a lot.
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