通過@PathVariabl注解獲取路徑中傳遞參數(shù)
JAVA 1?? ??@RequestMapping(value?=?"/{id}/{str}")
2?????public?ModelAndView?helloWorld(@PathVariable?String?id,
3?????????????@PathVariable?String?str)?{
4?????????System.out.println(id);
5?????????System.out.println(str);
6?????????return?new?ModelAndView("/helloWorld");
7?????}

用@ModelAttribute注解獲取POST請求的FORM表單數(shù)據(jù)
JSP 1?<form?method="post"?action="hao.do">
2?a:?<input?id="a"?type="text"???name="a"/>
3?b:?<input?id="b"?type="text"???name="b"/>
4?<input?type="submit"?value="Submit"?/>
5?</form>
JAVA pojo 1?public?class?Pojo{
2?????private?String?a;
3?????private?int?b;
4?? ??
5?
JAVA controller 1?@RequestMapping(method?=?RequestMethod.POST)
2?????public?String?processSubmit(@ModelAttribute("pojo")?Pojo?pojo)?{?
3?????????
4?????????return?"helloWorld";
5?????}

直接用HttpServletRequest獲取
JAVA 1?? ??@RequestMapping(method?=?RequestMethod.GET)
2?????public?String?get(HttpServletRequest?request,?HttpServletResponse?response)?{
4?????????System.out.println(request.getParameter("a"));
5?????????return?"helloWorld";
6?????}

用注解@RequestParam綁定請求參數(shù)a到變量a
當(dāng)請求參數(shù)a不存在時會有異常發(fā)生,可以通過設(shè)置屬性required=false解決,
例如:?@RequestParam(value="a", required=false)
JAVA 1?? ??@RequestMapping(value?=?"/requestParam",?method?=?RequestMethod.GET)
2?????public?String?setupForm(@RequestParam("a")?String?a,?ModelMap?model)?{
3?????????System.out.println(a);
4??? ? ? ?return "helloWorld";}

總結(jié)

以上是生活随笔為你收集整理的springMVC参数的传递方式(1.通过@PathVariabl获取路径参数，2.@ModelAttribute获取数据，3.HttpServletRequest取参，4@RequestParam)的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

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