彈簧mvc - 文件名下載空白時出錯

Question

我正在面臨Spring mvc下載包含名稱中包含空格的文件的問題。 我想要做的是使用內置的Spring MVC資源解析器從遠程主機下載文件。

我使用Spring安全以及Spring MVC的，但測試沒有具體的模式應用任何安全

春季安全配置：

<http> 
.... 
    <intercept-url pattern="/test download/**" access="permitAll" requires-channel="https" /> 
... 
</http> 

然後請求到達MVC調度器，其中配置資源解析器等：

Spr荷蘭國際集團MVC配置：

<mvc:resources mapping="/test download/**" location="http://localhost:10089/test/" /> 

的配置工作只是罰款不具有名稱空間中的文件。在Spring模塊上啓用調試日誌我發現這兩個請求（在文件名中有或沒有空格）都以完全相同的方式處理。 解決這兩個調用時，在Spring調度程序servlet的日誌之下。

第一次測試路徑：/測試下載/ file.txt的

... after security filters .. 
DEBUG org.springframework.web.servlet.DispatcherServlet - DispatcherServlet with name 'mvc-dispatcher' processing GET request for [/portal/test%20download/file.txt] 
DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Looking up handler method for path /test download/file.txt 
DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Did not find handler method for [/test download/file.txt] 
DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Looking up handler method for path /test download/file.txt 
DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Did not find handler method for [/test download/file.txt] 
DEBUG org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Matching patterns for request [/test download/file.txt] are [/test download/**] 
DEBUG org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - URI Template variables for request [/test download/file.txt] are {} 
DEBUG org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Mapping [/test download/file.txt] to HandlerExecutionChain with handler [ResourceHttpRequestHandler [locations=[URL [http://localhost:10089/test/]], resolvers=[org.springframework.web.servlet.resource.PathResourceResolver@2a6eb843]]] and 1 interceptor 
DEBUG org.springframework.web.servlet.DispatcherServlet - Last-Modified value for [/portal/test%20download/file.txt] is: -1 
DEBUG org.springframework.security.web.context.HttpSessionSecurityContextRepository - SecurityContext is empty or contents are anonymous - context will not be stored in HttpSession. 
DEBUG org.springframework.web.servlet.DispatcherServlet - Null ModelAndView returned to DispatcherServlet with name 'mvc-dispatcher': assuming HandlerAdapter completed request handling 
DEBUG org.springframework.web.servlet.DispatcherServlet - Successfully completed request 
DEBUG org.springframework.security.web.access.ExceptionTranslationFilter - Chain processed normally 
DEBUG org.springframework.security.web.context.SecurityContextPersistenceFilter - SecurityContextHolder now cleared, as request processing completed 

結果：Content of the file is shown in the browser as expected

第二測試路徑：/測試下載/測試file.txt的

... after security filters .. 
DEBUG org.springframework.web.servlet.DispatcherServlet - DispatcherServlet with name 'mvc-dispatcher' processing GET request for [/portal/test%20download/test%20file.txt] 
DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Looking up handler method for path /test download/test file.txt 
DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Did not find handler method for [/test download/test file.txt] 
DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Looking up handler method for path /test download/test file.txt 
DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Did not find handler method for [/test download/test file.txt] 
DEBUG org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Matching patterns for request [/test download/test file.txt] are [/test download/**] 
DEBUG org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - URI Template variables for request [/test download/test file.txt] are {} 
DEBUG org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Mapping [/test download/test file.txt] to HandlerExecutionChain with handler [ResourceHttpRequestHandler [locations=[URL [http://localhost:10089/test/]], resolvers=[org.springframework.web.servlet.resource.PathResourceResolver@2a6eb843]]] and 1 interceptor 
DEBUG org.springframework.web.servlet.DispatcherServlet - Last-Modified value for [/portal/test%20download/test%20file.txt] is: -1 
DEBUG org.springframework.security.web.context.HttpSessionSecurityContextRepository - SecurityContext is empty or contents are anonymous - context will not be stored in HttpSession. 
DEBUG org.springframework.web.servlet.DispatcherServlet - Null ModelAndView returned to DispatcherServlet with name 'mvc-dispatcher': assuming HandlerAdapter completed request handling 
DEBUG org.springframework.web.servlet.DispatcherServlet - Successfully completed request 
DEBUG org.springframework.security.web.access.ExceptionTranslationFilter - Chain processed normally 
DEBUG org.springframework.security.web.context.SecurityContextPersistenceFilter - SecurityContextHolder now cleared, as request processing completed 

結果：Http 404 is returned

的2個文件是在主機的同一文件夾，我都使用用於文件的本地服務器，並使用相同的結果的遠程服務器測試。

我試圖解決我的需求，只是使用Spring配置，因爲我需要的基本上類似於代理，但應用了安全規則。

Spring MVC的版本：4.1.6.RELEASE

Spring Security的版本：3.2.5.RELEASE

任何想法，爲什麼發生這種情況？

UPDATE

弗雷德裏克提示後，我配置了我使用測試遠程主機管理UTF-8 tomcat的，我發現，當它處理從春天來的請求，則返回505。

簡單的調用從瀏覽器到遠程主機：

「GET /test/test%20file.txt HTTP/1.1」，通過春收到200 15

電話：

「HEAD/test/test file.txt HTTP/1.1」505 -

我甚至在配置連接器之前嘗試在名稱中創建帶有％20的文件，並且它不起作用，因此可能甚至在編碼工作之前。

Answer 1

該問題已通過創建自定義資源處理程序解決。

我們在細節所做的是建立在啓動時加載的配置

@Configuration 
@EnableWebMvc 
public class WebConfiguration extends WebMvcConfigurerAdapter { 


    /** 
    * 
    * Add ResourceResolver that fix the whitespace problem in filename url. 
    * resources that needs this fix must be configured here instead of inside xml 
    * 
    * @param registry 
    */ 
    @Override 
    public void addResourceHandlers(ResourceHandlerRegistry registry) { 

     registry.addResourceHandler("/test download/**") 
       .addResourceLocations("http://localhost:10089/test/") 
       .resourceChain(true) 
       .addResolver(new CustomPathResourceResolver()) 
       ; 
    } 


} 

而且CustomPathResourceResolver一類

import org.springframework.core.io.Resource; 
import org.springframework.web.servlet.resource.PathResourceResolver; 
import org.springframework.web.servlet.resource.ResourceResolver; 
import java.io.IOException; 

public class CustomPathResourceResolver extends PathResourceResolver implements ResourceResolver { 

    @Override 
    protected Resource getResource(String resourcePath, Resource location) throws IOException { 
     //fixes problems with whitespaces in url 
     resourcePath = resourcePath.replace(" ","%20"); 
     return super.getResource(resourcePath, location); 
    } 
} 

的更換是不是最完美的解決方案:)大概但我們現在簡單的需求就足夠了。

Answer 2

負責根據URL查找資源的處理程序使用HandlerMapping .PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE，它對應於您在映射中配置的/**值。

https://github.com/spring-projects/spring-framework/blob/master/spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceHttpRequestHandler.java#L407

我敢肯定的是用於獲取該文件的路徑包含轉義字符。所以它會尋找一個名爲test%20file.txt的文件。您可以通過在名稱爲test download的文件夾中添加文件來驗證是否屬於這種情況。

Spring實際上解碼URL - 你可以檢查你的tomcat /容器是否真的是UTF-8字符集過濾器？