jsp how to read the absolute path to the temporary folder under tomcat temp under the picture ?

  tomcat   jsp

jsp how to read the absolute path to the temporary folder under tomcat temp under the picture ?
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because access is very large, temporary images generated more thought put under temporary folder under tomcat temp, easy to clean up regularly .
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xxx.class.getResource ("/") to get the root directory of the project , the rest of their own to fight it
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in jsp do this:
request.getContentPath () to get the project root directory. If your path is in the root directory , it is this:
String tmpPath = request.getContentPath () + "/ temp";
then traverse the path of the file to obtain the desired picture.
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your temporary path is up to you to set up.
Then , you can use this as a path you want to take .
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entangled in this you how to write this path
I want to emphasize is :
redirection when the imp jsp loaded the default root directory is redirected Tomcat server the root
respon.sendRedirect ("/") ;/ / this is the root directory of the Tomcat

hope useful ! ! ! !
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read the display , is a simple stream operations
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these documents you need to protect it? If you do not need an alias such as tomcat Riga

  <Context path="/temp" docBase="e:/tomcat/temp"  crossContext="false"  debug="1"  reloadable="true" >      
  </Context>
  

then the tag in your img src can write

<img src="/temp/toto.png"/>

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not project root
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My pictures have been placed in temporary temp file folder under tomcat , and now is how to use this image in jsp page , absolute path to use, the picture does not show . Is there any way ?
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My pictures have been placed in temp folder , and that is the root directory of tomcat , I 've got to use it! My worry now is how to read the displayed ~ ~
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now use to configure a virtual directory Photo 'd come out, the configuration of how regularly cleaned
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ah , but I have written to the specified folder of images , but the src = "", can not be displayed , and the path is correct, there is no split image placeholder is not properly displayed , search the search are saying , do not understand ~ ~
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src = "/ application name / image path " , put your catalog made up .
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currently is so resolved , thank you
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your landlord is how to solve the country. Path picture I uploaded is stored in the database / uploadfile/Document/38f78d6e-35c3-424b-8255-f505e74a656f.jpg I can picture how drawn out of it in jsp interface display . Solving