SPRINGMVC parameters obtained by annotations

SPRINGMVC can be mapped by Requestparam annotations to obtain parameters, using the following:

Example:

Configuration procedure omitted

1. New Controller class

　　

1  PackageCom.loger.controller;2 3 ImportOrg.springframework.stereotype.Controller;4 Importorg.springframework.web.bind.annotation.RequestMapping;5 6 7 @Controller8  Public classRequestparam {9     Ten      Public Static FinalString SUCCESS = "SUCCESS"; One      A@RequestMapping (value= "/requestparam") -      PublicString Requestparam (@org. springframework.web.bind.annotation. -Requestparam (value= "username") String un, the@org. Springframework.web.bind.annotation.RequestParam (value= "Age") (Integer age) { -          -System.out.println (un + "" +Age ); -          +         returnSUCCESS; -     } +}

2.index.jsp

Operation Result:

Add: If the table sole name is consistent with the parameter name of the method, you do not need to use the @requestparam annotation to map it.

If you change to

@RequestMapping (value= "/requestparam") public     string Requestparam (String Username,integer-age)!


Use the class as an argument and include the parameter-fetching method for the cascading property :
1. New Adress class
　　

1  PackageCom.loger.bean;2 3  Public classAddress {4     PrivateString Province;5     PrivateString City;6      PublicString getprovince () {7         returnProvince;8     }9      Public voidsetprovince (String province) {Ten          This. Province =Province; One     } A      PublicString getcity () { -         returnCity ; -     } the      Public voidsetcity (String city) { -          This. City =City ; -     } - @Override +      PublicString toString () { -         return"Address [province=" + Province + ", city=" + City + "]"; +     } A      at}

2. New User class

1  PackageCom.loger.bean;2 3  Public classAddress {4     PrivateString Province;5     PrivateString City;6      PublicString getprovince () {7         returnProvince;8     }9      Public voidsetprovince (String province) {Ten          This. Province =Province; One     } A      PublicString getcity () { -         returnCity ; -     } the      Public voidsetcity (String city) { -          This. City =City ; -     } - @Override +      PublicString toString () { -         return"Address [province=" + Province + ", city=" + City + "]"; +     } A      at}

3.controller

4. Forms

User has a cascading attribute address, and the form passed in with the parameter address.city address.province

1 <formAction= "Pojoparam">2Name:<inputtype= "text"name= "Name"><BR>3Age:<inputtype= "text"name= "Age"><BR>4City:<inputtype= "text"name= "Address.city"><BR>5Provinces:<inputtype= "text"name= "Address.province"><BR>6         <inputtype= "Submit"value= "Submit"><BR>7     </form>

Operation Result:

SPRINGMVC parameters obtained by annotations