Question

我有一个表单，我希望用户填写它，然后点击一个提交按钮，将数据发送到数据库。

这是表格：

<form:form method="POST" action="addQuestion" >

   <input type="text" name="questionId" />Enter Id<br>
   <input type="text" name="theQuestion" />Enter Q <br>
   <input type="text" name="category" />Enter Category<br>
   <input type="text" name="correctAnswer" />Enter correct answer<br>
   <input type="submit" value="Next"  >

</form:form>

应该在这个webcontroller.java类中调用

和addQuestion

@RequestMapping(value = "/addQuestion", method = RequestMethod.POST)
    public ModelAndView addQuestion(Model model, @RequestParam(value="question", required = true)  String theQuestion , @RequestParam(value="questionId", required = true)  Integer questionId, @RequestParam(value="category", required = true)   String category, @RequestParam(value="correctAnswer", required = true)   String correctAnswer) throws SQLException{
        ViewController viewController = new ViewController();
        viewController.createQuestion(questionId, theQuestion, category, correctAnswer);

        return new ModelAndView("qFour", "question", new Question());
    }

然后应该调用viewController连接到DAO以将数据提交到数据库。但是，目前，当点击提交时，它只刷新页面或者只是删除输入到输入框中的所有数据

Answer 1

在Spring中查找@ModelAttribute以及Spring Forms标记和注释。以下内容仅需要一些工作，但它应该指向正确的方向。

<form:form method="POST" modelAttribute="question" action="addQuestion" >

<form:input path="questionId" />Enter Id<br>
<form:input path="theQuestion" />Enter Q <br>
<form:input path="category" />Enter Category<br>
<form:input path="correctAnswer" />Enter correct answer<br>
<form:button type="submit">Next</form:button>

</form:form>

控制器：

@RequestMapping(value="/addQuestion", method=RequestMethod.POST)
public ModelAndView addQuestion(@ModelAttribute Question question) {

@ModelAttribute("question")
public Question createQuestion() {
   return new Question();
}

在spring中将数据从jsp表单发送到数据库（不使用servlet）

1 个答案: