你是不是用的STRUTS啊？资源文件有没有放在路径上？
举例：/WEB-INF/ApplicationResource.properties
<web-app>
<!-- Action Servlet Configuration -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>application</param-name>
<param-value>/WEB-INF/ApplicationResource</param-value>
</init-param>
<init-param>
举例：/WEB-INF/ApplicationResource.properties
<web-app>
<!-- Action Servlet Configuration -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>application</param-name>
<param-value>/WEB-INF/ApplicationResource</param-value>
</init-param>
<init-param>
我是用文本编辑，然后改掉后缀，这方法对吗？
login.title=Struts Demo
login.heading=<h1>Welcome to the StrutsDemo !</h1>
lgoin.message=Welcome to the StrutsDemo !
login.inputPassword=Please input Password :
login.inputName=Please input Username :
loginOK.title= User Login Successfull
loginOK.message=<h1>Login Successfull !</h1>
error.username.required=<h3><font color="red">UserName is Required !</font></h3>
error.password.required=<h3><font color="red">Password is Required !</font></h3>
error.username.wrong=<h3><font color="red">UserName is Wrong !</font></h3>
error.password.wrong=<h3><font color="red">Password is Wrong !</font></h3>
errors.footer=</ul><hr>
errors.header=<h3><font color="red">Validation Error</font></h3>You must correct the following error(s) before proceeding:<ul>
有不对的地方吗？