Question

Result.java：

HashMap

result.jsp（带表单的片段）

public class Result {

    private Float weight;
    private Float series;
    private Float rep;
    private String doneDate;
    public Float getWeight() {
        return weight;
    }
    public void setWeight(Float weight) {
        this.weight = weight;
    }
    public Float getSeries() {
        return series;
    }
    public void setSeries(Float series) {
        this.series = series;
    }
    public Float getRep() {
        return rep;
    }
    public void setRep(Float re) {
        this.rep = rep;
    }
    public String getDoneDate() {
        return doneDate;
    }
    public void setDoneDate(String doneDate) {
        this.doneDate = doneDate;
    }


}

和<form:form method="POST" modelAttribute="resultForm" class="form-signin" action="/main/result/${object.id}"> <spring:bind path="weight"> <div class="form-group ${status.error ? 'has-error' : ''}" style="display: inline;"> <form:input style="width:30%" type="text" path="weight" class="form-control resultsave"></form:input> </div> </spring:bind>/ <spring:bind path="series"> <div class="form-group ${status.error ? 'has-error' : ''}" style="display: inline;"> <form:input style="width:30%" type="text" path="series" class="form-control resultsave" ></form:input> </div> </spring:bind>/ <spring:bind path="rep"> <div class="form-group ${status.error ? 'has-error' : ''}" style="display: inline;"> <form:input style="width:30%" type="text" path="rep" class="form-control resultsave" ></form:input> </div> </spring:bind> <br/> <spring:bind path="doneDate"> <div class="form-group ${status.error ? 'has-error' : ''}" style="display:inline"> <form:input type="text" id="datepicker" path="doneDate" class="form-control resultsave" value="${date}"></form:input> </div> </spring:bind> <br /> <button class="btn btn-lg btn-primary btn-block overlayLink button big alt" type="submit">Zapisz wyniki</button> </form:form>方法的控制器

POST

验证者（我已经发表评论，因为我不确定是什么导致了我的问题）：

@RequestMapping(value = "/main/result/{id}", method = RequestMethod.POST)
    public String save(@ModelAttribute("resultForm") Result result, @PathVariable("id") Long id, BindingResult bindingResult, Model model,Principal principal){

        Exercise exercise = exerciseService.findById(id);
        if(exercise.getUsername().equals(principal.getName())){
            resultValidator.validate(result, bindingResult);

            return "redirect:main";
        }
        else
            return "redirect:main";
    }

然而，每当我提交表格时，我都会收到不好的请求，有人能指出我做错了吗？

13:46：5533警告 [org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver] （默认任务-62）无法绑定请求元素： org.springframework.web.method.annotation.MethodArgumentTypeMismatchException：无法将[java.lang.String]类型的值转换为所需类型 [java.lang.Long中];嵌套异常是java.lang.NumberFormatException：对于输入字符串：＆＃34; main＆＃34;

Answer 1

所传递的id的值应为数字（长整数），但是您在击中（/main/result/${object.id}）时传递了字符串值，该值无法转换为数字。请共享完整的jsp页面。

DefaultHandlerExceptionResolver无法绑定请求元素

1 个答案: