This question already has answers here:
What causes “java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'command' available as request attribute”?
(5个答案)
3年前关闭。
嗨,专家们,
我有引发上述错误的 Controller 代码。到昨天为止,一切正常,我不知道同事对该代码做了什么,今天我看到了错误:
BeanResult'sideForm'的BindingResult和普通目标对象都不能用作请求属性
您能否建议我在哪里寻找这种错误。我在POST或GET方法声明中犯了任何错误还是返回了错误的东西?
非常感谢您的帮助:)
此页面从如下所示的表单获取值:
在您的JSP中:
(5个答案)
3年前关闭。
嗨,专家们,
我有引发上述错误的 Controller 代码。到昨天为止,一切正常,我不知道同事对该代码做了什么,今天我看到了错误:
BeanResult'sideForm'的BindingResult和普通目标对象都不能用作请求属性
您能否建议我在哪里寻找这种错误。我在POST或GET方法声明中犯了任何错误还是返回了错误的东西?
非常感谢您的帮助:)
package com.att.analytics.ui;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.si.myworld.business.AdminChart;
import com.si.myworld.business.Chart;
import com.si.myworld.dao.AdminChartSummaryData;
import com.si.myworld.dao.BulletinData;
import com.si.myworld.dao.ChartData;
@RequestMapping("/index.html")
@Controller
public class IndexController {
private static final Logger log = Logger.getLogger(IndexController.class);
/**
* Called to load the page initially (GET request)
*
* @param model
* @return
*/
@RequestMapping(method = RequestMethod.GET)
public String getCharts(ModelMap model) {
Chart chart = new Chart();
chart.setTimeline("Monthly");
chart.setStartDt("mm/dd/yyyy");
chart.setEndDt("mm/dd/yyyy");
AdminChartSummaryData acsd = new AdminChartSummaryData();
List<AdminChart> list = acsd.getLandingChartDataList();
if (list.size() == 4) {
Chart chart1 = new Chart(list.get(0));
Chart chart2 = new Chart(list.get(1));
Chart chart3 = new Chart(list.get(2));
Chart chart4 = new Chart(list.get(3));
model.put("chart1", chart1);
model.put("chart2", chart2);
model.put("chart3", chart3);
model.put("chart4", chart4);
log.info("chart 1>>>>" + chart1);
ChartData cd = new ChartData();
String chartOneDatasource = cd.fetchChartDatasourceName(chart1
.getChartSubgroup());
String chartTwoDatasource = cd.fetchChartDatasourceName(chart2
.getChartSubgroup());
String chartThreeDatasource = cd.fetchChartDatasourceName(chart3
.getChartSubgroup());
String chartFourDatasource = cd.fetchChartDatasourceName(chart4
.getChartSubgroup());
String breadcrumbOne = chart1.getChartGroup() + ">>"
+ chart1.getChartSubgroup();
String breadcrumbTwo = chart2.getChartGroup() + ">>"
+ chart2.getChartSubgroup();
String breadcrumbThree = chart3.getChartGroup() + ">>"
+ chart3.getChartSubgroup();
String breadcrumbFour = chart4.getChartGroup() + ">>"
+ chart4.getChartSubgroup();
BulletinData bd = new BulletinData();
String bulletin = bd.getBulletinData();
model.put("sideForm", chart);
model.put("chartOneDatasource", chartOneDatasource);
model.put("chartTwoDatasource", chartTwoDatasource);
model.put("chartThreeDatasource", chartThreeDatasource);
model.put("chartFourDatasource", chartFourDatasource);
model.put("breadcrumbOne", breadcrumbOne);
model.put("breadcrumbTwo", breadcrumbTwo);
model.put("breadcrumbThree", breadcrumbThree);
model.put("breadcrumbFour", breadcrumbFour);
model.put("bulletin", bulletin);
}
return "land";
}
@RequestMapping(method = RequestMethod.POST)
public String loadCharts(HttpServletRequest request, ModelMap model, @ModelAttribute("sideForm") Chart chart) {
String from_date = request.getParameter("startDt");
String to_date = request.getParameter("endDt");
chart.setStartDt(from_date);
chart.setEndDt(to_date);
ChartData cd = new ChartData();
BulletinData bd = new BulletinData();
String bulletin = bd.getBulletinData();
AdminChartSummaryData acsd = new AdminChartSummaryData();
List<AdminChart> list = acsd.getLandingChartDataList();
if (list.size() == 4) {
Chart chart1 = new Chart(list.get(0));
Chart chart2 = new Chart(list.get(1));
Chart chart3 = new Chart(list.get(2));
Chart chart4 = new Chart(list.get(3));
model.put("chart1", chart1);
model.put("chart2", chart2);
model.put("chart3", chart3);
model.put("chart4", chart4);
String chartOneDatasource = cd.fetchChartDatasourceName(chart1
.getChartSubgroup());
String chartTwoDatasource = cd.fetchChartDatasourceName(chart2
.getChartSubgroup());
String chartThreeDatasource = cd.fetchChartDatasourceName(chart3
.getChartSubgroup());
String chartFourDatasource = cd.fetchChartDatasourceName(chart4
.getChartSubgroup());
model.put("chartOneDatasource", chartOneDatasource);
model.put("chartTwoDatasource", chartTwoDatasource);
model.put("chartThreeDatasource", chartThreeDatasource);
model.put("chartFourDatasource", chartFourDatasource);
String breadcrumbOne = chart1.getChartGroup() + ">>"
+ chart1.getChartSubgroup();
String breadcrumbTwo = chart2.getChartGroup() + ">>"
+ chart2.getChartSubgroup();
String breadcrumbThree = chart3.getChartGroup() + ">>"
+ chart3.getChartSubgroup();
String breadcrumbFour = chart4.getChartGroup() + ">>"
+ chart4.getChartSubgroup();
model.put("breadcrumbOne", breadcrumbOne);
model.put("breadcrumbTwo", breadcrumbTwo);
model.put("breadcrumbThree", breadcrumbThree);
model.put("breadcrumbFour", breadcrumbFour);
}
return "land";
}
@ModelAttribute("timeline")
public Collection<String> populateTimeline() {
return Arrays.asList("Daily", "Weekly", "Monthly", "Quarterly",
"Annually", "12_Month_Rolling");
}
}
此页面从如下所示的表单获取值:
<form:form commandName="sideForm">
<div style="font-weight:bold; color:#000">Timeline</div>
<div style="margin:0 0 5px 0;"><form:select path="timeline" items="${timeline}" id="tm"/></div>
<div class="tofrom">From:</div>
<form:input path="startDt" id="from_date" size="7" maxlength="10" />
<div class="tofrom">To:</div>
<form:input path="endDt" id="to_date" size="7" maxlength="12" />
<input type="submit" value="Update Chart" />
</form:form>
最佳答案
确保您的Spring表单提及modelAttribute="<Model Name"
。
示例:
@Controller
@RequestMapping("/greeting.html")
public class GreetingController {
@ModelAttribute("greeting")
public Greeting getGreetingObject() {
return new Greeting();
}
/**
* GET
*
*
*/
@RequestMapping(method = RequestMethod.GET)
public String handleRequest() {
return "greeting";
}
/**
* POST
*
*
*/
@RequestMapping(method = RequestMethod.POST)
public ModelAndView processSubmit(@ModelAttribute("greeting") Greeting greeting, BindingResult result){
ModelAndView mv = new ModelAndView();
mv.addObject("greeting", greeting);
return mv;
}
}
在您的JSP中:
<form:form modelAttribute="greeting" method="POST" action="greeting.html">
10-07 22:07