通过@PathVariabl注解获取路径中传递参数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注解获取POST请求的FORM表单数据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获取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绑定请求参数a到变量a当请求参数a不存在时会有异常发生,可以通过设置属性required=false解决, 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";}
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