getResourceAsStream is always returning null

Question

I have the following structure in a Java Web Application   TheProject   --  Web Pages    -- --  WEB-INF    -- -- -- abc txt   -- -- index jsp   --  Source Packages    -- --  wservices    -- -- -- WS java   In WS java  I am using the following code in a Web Method   InputStream fstream   this getClass   getResourceAsStream  abc txt      But it is always returning a null   I need to read from that file  and I read that if you put the files in WEB-INF  you can access them with getResourceAsStream  yet the method is always returning a null   Any ideas of what I may be doing wrong   Btw  the strange thing is that this was working  but after I performed a Clean and Build on the Project  it suddenly stopped working

User · Answer

Instead of  InputStream fstream   this getClass   getResourceAsStream  abc txt       use  InputStream fstream   this getClass   getClassLoader   getResourceAsStream  abc txt      In this way it will look from the root  not from the path of the current invoking class

User · Answer

I had a similar problem and I searched for the solution for quite a while  It appears that the string parameter is case sensitive  So if your filename is abc TXT but you search for abc txt  eclipse will find it - the executable JAR file won t

User · Answer

I don t know if this applies to JAX-WS  but for JAX-RS I was able to access a file by injecting a ServletContext and then calling getResourceAsStream   on it    Context ServletContext servletContext      InputStream is   servletContext getResourceAsStream   WEB-INF test model js      Note that  at least in GlassFish 3 1  the path had to be absolute  i e   start with slash  More here  How do I use a properties file with jax-rs

User · Answer

I had the same problem when I changed from Websphere 8 5 to WebSphere Liberty   I utilized FileInputStream instead of getResourceAsStream    because for some reason WebSphere Liberty can t locate the file in the WEB-INF folder   The script was    FileInputStream fis   new FileInputStream getServletContext   getRealPath                                   WEBINF properties myProperties properties     Note  I used this script only for development

User · Answer

I think this way you can get the file from  anywhere   including server locations  and you do not need to care about where to put it    It s usually a bad practice having to care about such things   Thread currentThread   getContextClassLoader   getResourceAsStream  abc properties

User · Answer

A call to Class getResourceAsStream String  delegates to the class loader and the resource is searched in the class path  In other words  you current code won t work and you  should put abc txt in WEB-INF classes  or in WEB-INF lib if packaged in a jar file   Or use ServletContext getResourceAsStream String  which allows servlet containers to make a resource available to a servlet from any location  without using a class loader  So use this from a Servlet   this getServletContext   getResourceAsStream   WEB-INF abc txt            But is there a way I can call getServletContext from my Web Service    If you are using JAX-WS  then you can get a WebServiceContext injected    Resource private WebServiceContext wsContext    And then get the ServletContext from it   ServletContext sContext  wsContext getMessageContext                                 get MessageContext SERVLET CONTEXT

User · Answer

To my knowledge the file has to be right in the folder where the  this  class resides  i e  not in WEB-INF classes but nested even deeper  unless you write in a default package    net domain pkg1 MyClass java   net domain pkg1 abc txt   Putting the file in to your java sources should work  compiler copies that file together with class files

[java] getResourceAsStream() is always returning null

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