SPRINGMVC Customizing the Multi-View parser

The implementation of the request URL suffix to determine the return value type, such as Localhost:8080/list return JSP page, Localhost:8080/list.json return JSON format data

1. Create an enumeration return value type

Public enum resulttype {REDIRECT, JSP, JSON, XML}

2. Create a custom Viewresolver

1  Public classJsonviewresolverImplementsViewresolver {2 3     Privateview view;4 5      PublicView GetView () {6         returnview;7     }8 9      Public voidSetview (view view) {Ten          This. View =view; One     } A  - @Override -      PublicView resolveviewname (String viewName, locale locale) the             throwsException { -         return  This. View; -     } -  +}

Jsonviewresolver

1  Public classXmlviewresolverImplementsViewresolver {2 3     Privateview view;4 5      PublicView GetView () {6         returnview;7     }8 9      Public voidSetview (view view) {Ten          This. View =view; One     } A  - @Override -      PublicView resolveviewname (String viewName, locale locale) the             throwsException { -         return  This. View; -     } -  +}

Xmlviewresolver

1  Public classMultipleviewresolverextendsWebapplicationobjectsupportImplements2 Viewresolver {3 4     PrivateMap<string, viewresolver>resolvers;5     PrivateString Defaultviewresolvername =NULL;6 7      PublicMap<string, viewresolver>getresolvers () {8         returnresolvers;9     }Ten  One      Public voidSetresolvers (map<string, viewresolver>resolvers) { A          This. resolvers =resolvers; -     } -  the      PublicString Getdefaultviewresolvername () { -         returnDefaultviewresolvername; -     } -  +      Public voidsetdefaultviewresolvername (String defaultviewresolvername) { -Defaultviewresolvername =Defaultviewresolvername; +     } A      at     Privateviewresolver Getdefaultviewresolver () { -         return  This. Resolvers.get ( This. Defaultviewresolvername); -     } -  - @Override -      PublicView resolveviewname (String viewName, locale locale) in             throwsException { -Viewresolver Viewresolver =NULL; to         if(Viewname.equalsignorecase ("JSON") | | viewname.equalsignorecase ("XML"))) { +             return  This. Resolvers.get (ViewName). Resolveviewname (ViewName, locale); -         } the         intindex = Viewname.indexof (":"); *         if(Index = =-1) { $Viewresolver = This. Getdefaultviewresolver ();Panax Notoginseng}Else { -             if(viewname.substring (0, index). Equalsignorecase ("redirect")) { theViewresolver = This. Getdefaultviewresolver (); +}Else { AViewresolver = This. Resolvers.get (viewname.substring (0, index)); theViewName = viewname.substring (index + 1); +             } -         } $          $         if(Viewresolver! =NULL) { -             returnviewresolver.resolveviewname (viewName, locale); -         } the         return NULL; -     }Wuyi  the}

Multipleviewresolver

3. Create the Mybasecontroller so that all controllers inherit from it

1  Public Abstract classMybasecontroller {2 3      Public FinalString JSON = "JSON";4      Public FinalString XML = "xml";5 6     protectedstring result (Resulttype resulttype, string url) {7 8Resulttype = Resulttype = =NULL?ResultType.JSP:resultType;9 TenString ext =requestutil.getlookuppathextension (Threadlocalutil One . Getrequest ()); A  -         if(ext = =NULL) { -             if(Resulttype.equals (Resulttype.json) the||resulttype.equals (Resulttype.xml)) { -                 returnresulttype.name (). toLowerCase (); -             } -}Else if("JSON". Equalsignorecase (EXT) | | "XML". Equalsignorecase (EXT)) { +             returnext; -         } +         if(Resulttype.equals (resulttype.redirect)) { Aext =requestutil.getlookuppathfullextension (Threadlocalutil at . Getrequest ()); -             if(Ext! =NULL) { -URL + =ext; -             } -         } -  in         returnResulttype.name (). toLowerCase () + ":" +URL; -     } to}

Mybasecontroller

4.SpringMVC Configuration

<bean name= "Viewresolver"class= "Org.matrixframework.common.viewresolver.MultipleViewResolver" > <property name= "Defaultviewresolvername"                    Value= "jsp"/> <property name= "resolvers" > <map> <entry key= "JSP" > <!--JSP View Resolver--<bean name= "Internalresourceviewresolver"class= "Org.springframework.web.servlet.view.InternalResourceViewResolver" > <property name= "Viewcla SS "value=" Org.springframework.web.servlet.view.JstlView "/> <property name=" prefix "value="/ web-inf/views/jsp "/> <property name=" suffix "value=". jsp "/> </bean                    > </entry> <entry key= "JSON" > <!--JSON view parser-- <bean name= "Jsonviewresolver"class= "Com.framework.common.viewresolver.JsonViewResolver" > <property name= "View" > <beanclass= "Org.springframework.web.servlet.view.json.MappingJackson2JsonView" > <property name= "ContentType" value= "text/html; Charset=utf-8 "/> </bean> </property> & lt;/bean> </entry> </map> </property> </bean>

SPRINGMVC Customizing the Multi-View parser