xlsx文件不能在tomcat容器中下载 出现404错误

如果服务器上面的确存在该xlsx文件 但是通过tomcat访问该文件的时候(即下载)出现404 not found错误，是因为没有把mime-mapping配置上,原因见点击打开链接

可以将需要的mime-mapping配置在web.xml文件的最后

一下是通常的一些mime-mapping

1. <mime-mapping>  
2.         <extension>txt</extension>  
3.         <mime-type>application/octet-stream</mime-type>  
4.       </mime-mapping>  
5.         
6.       <mime-mapping>  
7.         <extension>dat</extension>  
8.         <mime-type>application/octet-stream</mime-type>  
9.       </mime-mapping>  
10.           
11.       <mime-mapping>  
12.         <extension>csv</extension>  
13.         <mime-type>application/octet-stream</mime-type>  
14.       </mime-mapping>    
15.     
16.       <mime-mapping>  
17.         <extension>rar</extension>  
18.         <mime-type>application/octet-stream</mime-type>  
19.       </mime-mapping>      
20.   
21.       <mime-mapping>  
22.         <extension>rmvb</extension>  
23.         <mime-type>application/octet-stream</mime-type>  
24.       </mime-mapping>      
25.   
26.       <mime-mapping>  
27.         <extension>avi</extension>  
28.         <mime-type>application/octet-stream</mime-type>  
29.       </mime-mapping>      
30.   
31.       <mime-mapping>  
32.         <extension>ppt</extension>  
33.         <mime-type>application/octet-stream</mime-type>  
34.       </mime-mapping>   
35.           
36.       <mime-mapping>  
37.         <extension>doc</extension>  
38.         <mime-type>application/octet-stream</mime-type>  
39.       </mime-mapping>   
40.   
41.       <mime-mapping>  
42.         <extension>xls</extension>  
43.         <mime-type>application/octet-stream</mime-type>  
44.       </mime-mapping>    
45.         
46.       <mime-mapping>  
47.         <extension>flv</extension>  
48.         <mime-type>application/octet-stream</mime-type>  
49.       </mime-mapping>  
50.         
51.       <mime-mapping>  
52.         <extension>docx</extension>  
53.         <mime-type>application/vnd.openxmlformats</mime-type>  
54.       </mime-mapping>  
55.         
56.       <mime-mapping>  
57.         <extension>xlsx</extension>  
58.         <mime-type>application/vnd.openxmlformats</mime-type>  
59.       </mime-mapping>  
60.         
61.       <mime-mapping>  
62.         <extension>pptx</extension>  
63.         <mime-type>application/vnd.openxmlformats</mime-type>  
64.       </mime-mapping>