java - spring boot mvc how to support multiple viewresoler (eg. jsp and freemarker) -


i hope web application support jsp , freemarker both templates.i have read article @ below. https://spring.io/blog/2013/06/03/content-negotiation-using-views code below. result jsp template ok. wrong configration?

mvcconfiguration.java

@configuration  @enablewebmvc  public class mvcconfiguration extends webmvcconfigureradapter {    	@bean  	public internalresourceviewresolver getjspviewresolver() {  		internalresourceviewresolver resolver = new internalresourceviewresolver();  		resolver.setprefix("/web-inf/jsp/");  		resolver.setsuffix(".jsp");  		resolver.setorder(0);  		return resolver;  	}    	@bean  	public freemarkerviewresolver getfmviewresolver() {  		freemarkerviewresolver resolver = new freemarkerviewresolver();  		resolver.setcache(true);  		resolver.setprefix("");  		resolver.setsuffix(".ftl");  		resolver.setcontenttype("text/html; charset=utf-8");  		resolver.setorder(1);  		return resolver;  	}  	  	@bean  	  public freemarkerconfigurer freemarkerconfig() throws ioexception, templateexception {  	    freemarkerconfigurationfactory factory = new freemarkerconfigurationfactory();  	    factory.settemplateloaderpath("classpath:templates");  	    factory.setdefaultencoding("utf-8");  	    freemarkerconfigurer result = new freemarkerconfigurer();  	    result.setconfiguration(factory.createconfiguration());  	    return result;  	  }	  	    	@bean  	public viewresolver contentnegotiatingviewresolver(  			contentnegotiationmanager manager) {  		list<viewresolver> resolvers = new arraylist<viewresolver>();  		resolvers.add(getjspviewresolver());  		resolvers.add(getfmviewresolver());    		contentnegotiatingviewresolver resolver = new contentnegotiatingviewresolver();  		resolver.setviewresolvers(resolvers);  		resolver.setcontentnegotiationmanager(manager);  		return resolver;  	}  }

testcontroller.java

@controller  public class testcontroller {    	@requestmapping("/hello")  	public string jspview() {  		return "hello";  	}  	  	@requestmapping("/fm")  	public string freemarkerview() {  		return "fm";  	}  	  }

hello.jsp

<%@ page language="java" contenttype="text/html; charset=utf-8"      pageencoding="utf-8"%>  <!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd">  <html>  <head>  <meta http-equiv="content-type" content="text/html; charset=utf-8">  <title>insert title here</title>  </head>  <body>  <%  	out.println("hello jsp");  %>  </body>  </html>

fm.ftl

<!doctype html>    <html lang="en">    <body>    hello freemarker  </body>    </html>

the viewresolvers consulted in chain, until 1 of them returns view render (javadoc).

however internalresourceviewresolver little different other viewresolver implementations, constructs url (using prefix , suffix) , returns view in turn forward request url. hence *always* return aview` instance.

now when have multiple viewresolvers make sure internalresourceviewresolver last in chain (as mentioned in javadocs of said class). if don't , first whole chain won't consulted.

to fix problem switch order of viewresolvers , way have both freemarker , jsp views working.


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