17-11-09 00:49:48.645 DEBUG [http-bio-8080-exec-5] Found mapping for [GET] path=/peo/gai : OneToOne.all(OneToOne.java:136)
17-11-09 00:49:48.646 DEBUG [http-bio-8080-exec-5] Get 'oneToOne'<class net.wendal.nutz.module.OneToOne>
17-11-09 00:49:48.653 DEBUG [http-bio-8080-exec-5] SELECT * FROM people  WHERE id=?
    |  1 |
    |----|
    | 17 |
  For example:> "SELECT * FROM people  WHERE id=17"
十一月 09, 2017 12:49:48 上午 org.apache.jasper.compiler.TldLocationsCache tldScanJar
信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
十一月 09, 2017 12:49:50 上午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in &lt;forEach&gt;
	at org.apache.taglibs.standard.tag.common.core.ForEachSupport.toForEachIterator(ForEachSupport.java:274)
	at org.apache.taglibs.standard.tag.common.core.ForEachSupport.supportedTypeForEachIterator(ForEachSupport.java:238)
	at org.apache.taglibs.standard.tag.common.core.ForEachSupport.prepare(ForEachSupport.java:155)
	at javax.servlet.jsp.jstl.core.LoopTagSupport.doStartTag(LoopTagSupport.java:256)
	at org.apache.jsp.WEB_002dINF.jsp.xiugai_jsp._jspx_meth_c_005fforEach_005f0(xiugai_jsp.java:214)
	at org.apache.jsp.WEB_002dINF.jsp.xiugai_jsp._jspService(xiugai_jsp.java:141)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.nutz.mvc.NutFilter.nextChain(NutFilter.java:230)
	at org.nutz.mvc.NutFilter.doFilter(NutFilter.java:205)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:743)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:485)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:410)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:337)
	at org.nutz.mvc.view.ForwardView.render(ForwardView.java:72)
	at org.nutz.mvc.impl.processor.ViewProcessor.process(ViewProcessor.java:66)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.MethodInvokeProcessor.process(MethodInvokeProcessor.java:33)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.AdaptorProcessor.process(AdaptorProcessor.java:33)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ActionFiltersProcessor.process(ActionFiltersProcessor.java:58)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ModuleProcessor.process(ModuleProcessor.java:123)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.EncodingProcessor.process(EncodingProcessor.java:27)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.UpdateRequestAttributesProcessor.process(UpdateRequestAttributesProcessor.java:15)
	at org.nutz.mvc.impl.NutActionChain.doChain(NutActionChain.java:44)
	at org.nutz.mvc.impl.ActionInvoker.invoke(ActionInvoker.java:67)
	at org.nutz.mvc.ActionHandler.handle(ActionHandler.java:31)
	at org.nutz.mvc.NutFilter.doFilter(NutFilter.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Unknown Source)

17-11-09 00:49:50.020 WARN [http-bio-8080-exec-5] Error@/peo/gai :
org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/jsp/xiugai.jsp at line 44

41: 	 <form action="${base}/peo/xiugai" method="post">
42: 		 <input type="hidden" name="id"  value="${obj.id }"><br/>
43: 	部门：<select name="dep_id">
44: 	    	<c:forEach items="${obj}" var="o">
45: 	    		<option value="${o.id}">${o.Dep}</option>
46: 	    	</c:forEach>
47: 		 </select><br/>


Stacktrace:
	at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:580)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:462)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.nutz.mvc.NutFilter.nextChain(NutFilter.java:230)
	at org.nutz.mvc.NutFilter.doFilter(NutFilter.java:205)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:743)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:485)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:410)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:337)
	at org.nutz.mvc.view.ForwardView.render(ForwardView.java:72)
	at org.nutz.mvc.impl.processor.ViewProcessor.process(ViewProcessor.java:66)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.MethodInvokeProcessor.process(MethodInvokeProcessor.java:33)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.AdaptorProcessor.process(AdaptorProcessor.java:33)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ActionFiltersProcessor.process(ActionFiltersProcessor.java:58)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ModuleProcessor.process(ModuleProcessor.java:123)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.EncodingProcessor.process(EncodingProcessor.java:27)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.UpdateRequestAttributesProcessor.process(UpdateRequestAttributesProcessor.java:15)
	at org.nutz.mvc.impl.NutActionChain.doChain(NutActionChain.java:44)
	at org.nutz.mvc.impl.ActionInvoker.invoke(ActionInvoker.java:67)
	at org.nutz.mvc.ActionHandler.handle(ActionHandler.java:31)
	at org.nutz.mvc.NutFilter.doFilter(NutFilter.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Unknown Source)
Caused by: javax.servlet.ServletException: javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in &lt;forEach&gt;
	at org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:916)
	at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:845)
	at org.apache.jsp.WEB_002dINF.jsp.xiugai_jsp._jspService(xiugai_jsp.java:190)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
	... 51 more
Caused by: javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in &lt;forEach&gt;
	at org.apache.taglibs.standard.tag.common.core.ForEachSupport.toForEachIterator(ForEachSupport.java:274)
	at org.apache.taglibs.standard.tag.common.core.ForEachSupport.supportedTypeForEachIterator(ForEachSupport.java:238)
	at org.apache.taglibs.standard.tag.common.core.ForEachSupport.prepare(ForEachSupport.java:155)
	at javax.servlet.jsp.jstl.core.LoopTagSupport.doStartTag(LoopTagSupport.java:256)
	at org.apache.jsp.WEB_002dINF.jsp.xiugai_jsp._jspx_meth_c_005fforEach_005f0(xiugai_jsp.java:214)
	at org.apache.jsp.WEB_002dINF.jsp.xiugai_jsp._jspService(xiugai_jsp.java:141)
	... 54 more

@At("/gai")
	@Ok("jsp:jsp.xiugai")
	 public NutMap all(@Param("id")int id){
		NutMap map=new NutMap();
		People p = dao.fetch(People.class, id);
		List<Dep> dep = dao.query(Dep.class, null);
		map.put("dep", dep);
		map.put("p", p);
		System.out.println(Json.toJson(dep));
		System.out.println(Json.toJson(p));
		 return map;
	 }

现在后台能获取到值了 但是jsp<c:ForEach>里面遍历不出来

好啦大神 我也是这么想的 部门出来了 就差人员了 人员表里的姓名 手机 这些 是不是还得用forEach遍历一下

哈哈 我是新手 代码是挺不规范的 但是我按您说的写了 obj.p 遍历人人员的 但是就报错了

恩恩好的 获取到啦 谢谢您了

都获取到了 但是不能改 好像是不知道 select name 的值

 <form action="${base}/peo/xiugai" method="post">
		 <input type="hidden" name="id"  value="${obj.id }"><br/>
		
	部门：<select name="dep_id">
	    	<c:forEach items="${obj.dep}" var="o">
	    		<option value="${o.id}">${o.name}</option>
	    	</c:forEach>
		 </select><br/>
	姓名： <input type="text" name="name" value="${obj.p.name }"><br/>
	分机： <input type="text" name="fenji" value="${obj.p.fenji }"><br/>
	手机： <input type="text" name="phone" value="${obj.p.phone}"><br/>
    Q&nbsp;Q：&nbsp;<input type="text" name="qq" value="${obj.p.qq }"><br/>
 		 <button onclick="alaaa('${obj.id}')">修改</button>
	</form>

17-11-09 10:32:46.259 WARN [http-bio-8080-exec-5] Error@/peo/all :
java.lang.NullPointerException
	at net.wendal.nutz.module.OneToOne.getAll(OneToOne.java:92)
	at net.wendal.nutz.module.OneToOne$FM$getAll$2fce99d9dd2f16c03fc693a72041696f.invoke(OneToOne.java)
	at org.nutz.mvc.impl.processor.MethodInvokeProcessor.process(MethodInvokeProcessor.java:31)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.AdaptorProcessor.process(AdaptorProcessor.java:33)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ActionFiltersProcessor.process(ActionFiltersProcessor.java:58)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ModuleProcessor.process(ModuleProcessor.java:123)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.EncodingProcessor.process(EncodingProcessor.java:27)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.UpdateRequestAttributesProcessor.process(UpdateRequestAttributesProcessor.java:15)
	at org.nutz.mvc.impl.NutActionChain.doChain(NutActionChain.java:44)
	at org.nutz.mvc.impl.ActionInvoker.invoke(ActionInvoker.java:67)
	at org.nutz.mvc.ActionHandler.handle(ActionHandler.java:31)
	at org.nutz.mvc.NutFilter.doFilter(NutFilter.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Unknown Source)

查询全部就报错 都写完啦 说跑一遍 呢 一运行 一登录就报错了 哪都没改

/**
	 * 全部
	 */
	@At("/all")
	@Ok("jsp:jsp.index")
	public List getAll(){
		List <People> d = dao.fetchLinks(dao.query(People.class,  Cnd.orderBy().asc("dep_id")), "dep");
		
		List<People> temp=new ArrayList<People>();
		List<List<People>> r=new ArrayList<List<People>>();
	
		for(int i=0;i<d.size();i++){		
			
			People u=(People) d.get(i);
		
	
		if(i != d.size()-1){
			People u1=(People) d.get(i+1);
			u.getDep().getName();
			
			u1.getDep().getName();
			temp.add(u); 
			if(null!=u.getDep().getName()&&!u.getDep().getName().equals(u1.getDep().getName())){
				
				r.add(temp);
				temp=new ArrayList<People>();
				
			}
		}else{			
			People u1=(People) d.get(i-1);
			u.getDep().getName();
			u1.getDep().getName();
			temp.add(u); 
			System.out.println(u.getDep().getName());
			System.out.println(u1.getDep());
			if(null!=u.getDep().getName()&&!u.getDep().getName().equals(u1.getDep().getName())){
				
				r.add(temp);
				temp=new ArrayList<People>();
				
			}else{	
				
				r.add(temp);
			}
		  }		
		}
		System.err.println(Json.toJson(r));
		return r;
	}
	

u.getDep().getName(); 92