java - Linux WAR file deployment error

Question

I am new to Jersey and tomcat deployment.

I am trying to interface my webapp with an Epson TM82 printer.

However I am getting the First Error as shown

when I try to access locally after deploying WAR file and upon refreshing I got another Second Error:

What is interesting is that when I run the deployment using Eclipse Java EE, the code runs and the printer is able to print.

I have checked

java -XshowSettings:properties

and library path and class path shows the correct location of the libraries and .so files.

May I know what is going on?

Answer 1

检查 java.library.path

样本 ：

public class Test {

    public static void main(String[] args) {      
        System.out.println(System.getProperty("java.library.path"));
        System.loadLibrary("jp_co_epson_upos_firm_FirmNativeAccess");
    }
}

确保路径中有 jp_co_epson_upos_firm_FirmNativeAccess.dll。

如果您安装了 EPSON Java POS： 完全卸载并再次安装。

Answer 2

您需要确保库 (jar) 捆绑在 WEB-INF/lib 文件夹下的 WAR 文件中。