[Email protected] In addition to modifying the method, can also modify the class
(1) Modifier class: Provides preliminary request mapping information, relative to the root directory of the Web request
(2) Modification method: Provide further subdivision mapping information
Relative to the URL at the class definition, if @requestmapping is not marked at the class definition, the URL marked at the method is relative to the Web app's root directory
How to request [email protected]
The value, method, params, and heads of the @RequestMapping represent request URLs, request methods, request parameters, and the mapping bar of the request header, respectively
, they are related to each other, and using multiple conditions together allows for more precise request mapping.
3.ANT style resource address supports 3 types of matching characters:
–?: Matches one character in a file name
–*: Matches any character in the file name
–**:** matching multi-layer paths
? @RequestMapping also supports ANT-style URLs:
–/user/*/createuser: Match
URLs such as/user/aaa/createuser,/user/bbb/createuser, etc.
–/user/**/createuser: Match
URLs such as/user/createuser,/user/aaa/bbb/createuser, etc.
–/user/createuser??: Match
URLs such as/user/createuseraa,/USER/CREATEUSERBB, etc.
1 Packagecom.study.springmvc.handlers;2 3 ImportOrg.springframework.stereotype.Controller;4 Importorg.springframework.web.bind.annotation.RequestMapping;5 ImportOrg.springframework.web.bind.annotation.RequestMethod;6 7@RequestMapping ("/requestmappingtest")8 @Controller9 Public classRequestmappingtest {Ten One Public Static FinalString success= "SUCCESS"; A /** - * [email protected] In addition to the method can be modified, but also to modify the class - * (1) Modifier class: Provides preliminary request mapping information, relative to the root directory of the Web request the * (2) Modification method: Provide further subdivision mapping information - * Relative to the URL at the class definition, if @requestmapping is not marked at the class definition, the URL marked at the method is relative to the Web app's root directory - * @returnSuccess - */ +@RequestMapping ("/testrequestmapping") - PublicString testrequestmapping () { +System.out.println ("Testrequestmapping"); A returnSUCCESS; at } - - /** - * [Email protected] Request Method - the value, method, params, and heads of the @RequestMapping represent request URLs, request methods, request parameters, and the mapping bar of the request header, respectively - , they are related to each other, and using multiple conditions together allows for more precise request mapping. in * @return - */ to@RequestMapping (value= "/testmethod", method=requestmethod.post) + PublicString TestMethod () { -System.out.println ("TestMethod post mode"); the returnSUCCESS; * } $ Panax Notoginseng /** - * 3. Understanding: You can use params and headers to map requests more precisely. Params and headers support simple expressions. the * + * @return A */ the@RequestMapping (value = "Testparamsandheaders", params = {"username"), +"Age!=10"}, headers = {"accept-language=zh-cn,zh;q=0.8" }) - PublicString testparamsandheaders () { $System.out.println ("Testparamsandheaders"); $ returnSUCCESS; - } - /** the * 4.ANT style resource address supports 3 types of match characters: - *–?: Matches one character in a file nameWuyi *–*: Matches any character in the file name the *–**:** matching multi-layer paths - * @return Wu */ -@RequestMapping ("/testantpath/*/abc") About PublicString Testantpath () { $System.out.println ("Testantpath"); - returnSUCCESS; - } -}
1 <%@ Page Language="Java"ContentType="text/html; Charset=utf-8"2 pageencoding="UTF-8"%>3 4 <!DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd ">5 <HTML>6 <Body>7 <!--href= "HelloWorld" and Helloworld.java's @requestmapping ("/helloworld") correspond -8 <ahref= "HelloWorld">Hello World</a>9 Ten <BR/> One <ahref= "Requestmappingtest/testrequestmapping">@RequestMapping modifying classes and methods</a> A - <BR/> - <formAction= "Requestmappingtest/testmethod"Method= "POST"> the <inputtype= "Submit"value= "Test @requestmappin POST request Mode"> - </form> - - <BR/> + <ahref= "requestmappingtest/testparamsandheaders?username=lgs&age=11">Testparamsandheaders</a> - + <BR/> A <ahref= "REQUESTMAPPINGTEST/TESTANTPATH/GGGGGGG/ABC">Testantpath</a> at - - </Body> - </HTML>Second, @PathVariable
Placeholder for @PathVariable map URL bindings
? The URL with placeholders is a new feature of Spring3.0, a milestone in the development of SPRINGMVC to REST goals
EM id= "__mcedel" style= "font-size:14px" > ? You can bind placeholder parameters in URLs to Process method entry: {XXX in URL The placeholder can be @PathVariable ("xxx") are bound to the entry parameters of the action method.
1 < href= "PATHVARIABLETEST/TESTPATHVARIABLE/10">testpathvariable</ a>
1 Packagecom.study.springmvc.handlers;2 3 ImportOrg.springframework.stereotype.Controller;4 Importorg.springframework.web.bind.annotation.PathVariable;5 Importorg.springframework.web.bind.annotation.RequestMapping;6 7@RequestMapping ("/pathvariabletest")8 @Controller9 Public classPathvariabletest {Ten One Public Static FinalString success= "SUCCESS"; A - /** - * @PathVariable can map placeholders in URLs to parameters in the target method. the * @paramID - * @return - */ -@RequestMapping ("/testpathvariable/{id}") + PublicString testpathvariable (@PathVariable ("id") (Integer ID) { -System.out.println ("testpathvariable:" +ID); + returnSUCCESS; A } at}
Springmvc Series (ii): Annotations @requestmapping, @PathVariable
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