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Displaying a blob image in jsp with struts 2
public static void execute() throws RemoteException {

HttpServletResponse response = ServletActionContext.getResponse();
response.reset();
response.setContentType("multipart/form-data");
session = ActionContext.getContext().getSession();
PublicApiService_PortType puerto=(PublicApiService_PortType) session.get("puerto");
((BasicHttpBinding_PublicApiServiceStub)puerto).setMaintainSession(true);

MessageContext ctx=(MessageContext) session.get("contexto");
PapiUserInfo[] users;

users = puerto.getUsers();
Long accountID=users[0].getID();
PapiAccountInfo info=puerto.getAccountInfo(accountID);
itemImage=info.getWhiteLabelingLogo();
System.out.println(itemImage);
OutputStream out;

try {
    out = response.getOutputStream();
    out.write(itemImage);
       out.flush();
       out.close();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}


}

<img src="<s:url value="ShowImageAction" />" border="0" width="100" height="100">

<action name="yourImageStreamAction">
    <result name="success" type="stream">
        <param name="inputName">inputStream</param>
    </result>
</action>

private InputStream inputStream = null;

public String execute() {
   //set inputStream from itemImage.
   //I don't know what itemImage is, so I'll leave that to you
   return SUCCESS;
}

public InputStream getInputStream() {
   return this.inputStream;
}