SPRINGMVC using requestmapping mapping requests, mapping parameters, mapping headers

1. Mapping requests

role: Use requestmapping to specify that the processor can handle those requests

Place: Classes and Methods all in front .

@requestMapping

　　　　class definition : provides preliminary request mapping information relative to the Web app's root directory .

method definition :　　　　 provides further subdivision mapping information relative to the URL at the class definition . If the class definition is not marked

@requestMapping, the URL at the method is relative to the Web app's root directory

2. Mapping parameters and Mapping headers

@RequestMapping (value= "Testparamsandhandler",params={"username", "age!=10"})
<!--map header file only as @RequestMapping (value= "Testhandler",headers={"accept-language= zh-cn,zh;q=0.8 "})

Simple expressions can be used @requestMapping mapping parameters and headers

1. params! =5 indicates that the request parameter cannot be equal to 5

2.! =params indicates that the request parameter cannot contain this parameter

3. params={"username", "age!=10"} request parameter contains multiple parameters

3. Sample Code

Controller

1 @Controller2  Public classSpringmvctest {3     4     /**5 * Configure @requestmapping Map Request Parameters6 * value is: Testparamsandhandler7 * Params parameter: Contains username, age!=108      */9@RequestMapping (value= "Testparamsandhandler", params={"username", "age!=10"})Ten      PublicString Testparamsandhandler () { OneSystem.out.println ("Testparamsandhandler"); A         return"Success"; -     } -@RequestMapping (value= "Testhandler", headers={"accept-language=zh-cn,zh;q=0.8"}) the      PublicString Testhandler () { -System.out.println ("Testhandler"); -         return"Success"; -     } +}

Front-end files

 <ahref= "HelloWorld">[Email protected] "only method mapping"</a></BR>
<ahref= "Helloworld/hello">[Email protected] "class + method Map"</a></BR>
<ahref= "testparamsandhandler?username&age=100">Test-paramsandhandler "a href=" testparamsandhandler?username&age=100 ""</a></BR>

SPRINGMVC using requestmapping mapping requests, mapping parameters, mapping headers