通過@pathvariabl注解擷取路徑中傳遞參數
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注解擷取post請求的form表單資料
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擷取
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a到變量a
當請求參數a不存在時會有異常發生,可以通過設定屬性required=false解決,
例如: <code>@requestparam(value="a", required=false)</code><code></code>
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";}