Spring MVC的地圖參數.JSP，而不是@RequestMapping

Question

我使用Maven原型

mvn archetype:generate -D groupId=test.tool -D artifactId=test-D version=0.1-SNAPSHOT -D archetypeArtifactId=spring-mvc-jpa-archetype -D archetypeGroupId=org.fluttercode.knappsack 

我一直在試圖讀取從URL的一些參數創建了一個示例彈簧MVC應用程序：

package test.tool.controller; 

import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.stereotype.Controller; 
import org.springframework.ui.Model; 
import org.springframework.web.bind.annotation.PathVariable; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 


@Controller 
@RequestMapping(value = "/testReadRest", method = RequestMethod.GET) 
public class TestReadRestController { 

private static final Logger logger = LoggerFactory 
     .getLogger(TestReadRestController.class); 


// No Params 
@RequestMapping(method = RequestMethod.GET) 
public void getMainModel(Model model) { 
    model.addAttribute("varFromClient","[NOT SET]"); 
    model.addAttribute("tokenFromClient","[NOT SET]"); 
    return; 
} 

// http://localhost:8080/test/testReadRest/varPost 
// read "varPost" 
@RequestMapping(value = "/{varPost}", method = RequestMethod.GET) 
public void getVarFromURI(@PathVariable("varPost") String theVar, Model model) { 
    model.addAttribute("varFromClient",theVar); 
    model.addAttribute("tokenFromClient","[NOT SET]"); 
    return; 
    } 
} 

而是試圖 http://localhost:8080/test/testReadRest/varPost

，而不是當參數不識字，我得到一個錯誤：

Problem accessing /soctoolset/WEB-INF/views/testReadRest/varPost.jsp. Reason: NOT_FOUND 

有什麼建議嗎？

[編輯]

這裏有豆

<?xml version="1.0" encoding="UTF-8"?> 
<beans:beans xmlns="http://www.springframework.org/schema/mvc" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:beans="http://www.springframework.org/schema/beans" 
    xsi:schemaLocation=" 
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> 

    <!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure --> 

    <!-- Enables the Spring MVC @Controller programming model --> 
    <annotation-driven /> 

    <!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory --> 
    <resources mapping="/resources/**" location="/resources/" /> 

    <!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory --> 
    <beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
     <beans:property name="prefix" value="/WEB-INF/views/" /> 
     <beans:property name="suffix" value=".jsp" /> 
    </beans:bean> 

    <!-- Imports user-defined @Controller beans that process client requests --> 
    <beans:import resource="controllers.xml" /> 

</beans:beans> 

和controller.xml

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd 
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> 

    <!-- Scans within the base package of the application for @Components to 
     configure as beans --> 
    <context:component-scan base-package="test.tool" /> 

    <tx:annotation-driven /> 
    <mvc:annotation-driven /> 

    <mvc:resources mapping="/resources/**" location="/resources/" /> 

    <bean id="validator" 
     class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" /> 

</beans> 

Answer 1

我建立與您使用的原型的新項目。

您從@Controller方法返回void，所以這個section from the docs適用：

void if the method handles the response itself (by writing the response content directly, declaring an argument of type ServletResponse/HttpServletResponse for that purpose) or if the view name is supposed to be implicitly determined through a RequestToViewNameTranslator (not declaring a response argument in the handler method signature).

因此，the view is resolved based on the path，你的情況「varPost」或任何你把在路徑的末尾。擴展名「的.jsp」追加由於此默認配置：

<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
    <beans:property name="prefix" value="/WEB-INF/views/" /> 
    <beans:property name="suffix" value=".jsp" /> 
</beans:bean> 

您可以添加丟失的文件，但我想這不是你想要做什麼。相反，您可以更改該處理方法的簽名，並明確設置視圖，就像這樣：

@RequestMapping(value = "/{varPost}", method = RequestMethod.GET) 
public String getVarFromURI(@PathVariable("varPost") String theVar, 
     Model model) { 
    model.addAttribute("varFromClient", theVar); 
    model.addAttribute("tokenFromClient", "[NOT SET]"); 
    return "someview"; 
} 

這將導致以下合理的錯誤：

The requested resource (/testapp/WEB-INF/views/someview.jsp) is not available.

現在，你只需要創建一個視圖。然後，您可以使用路徑變量而不干擾視圖分辨率。

如果您不想呈現JSP，您可以先閱讀有關"Supported method return types"的文檔。如果您想完全自行處理響應，則可以再次返回void，並返回add the request and response as arguments。