log4j jsp導入

Question

我得到以下內容，但log4j在Java EE項目的java文件中工作正常

09:09:56,785 ERROR [0]] Exception Processing ErrorPage[errorCode=404, location=/pages/sorry3.jsp]
org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 1 in the generated java file
The type org.apache.log4j.Logger cannot be resolved. It is indirectly referenced from required .class files

An error occurred at line: 10 in the generated java file
The import org.apache.log4j.Logger cannot be resolved

An error occurred at line: 54 in the jsp file: /pages/sorry3.jsp
Logger cannot be resolved

53:     
54:     Logger.getLogger("com.mysite.myapp.jsps.sorry3").error(
55:         "Page Not Found: " + pageContext.getErrorData().getRequestURI());
56: %>
57: 

如果有人能指出我正確的方向，那將是偉大的。

Answer 1

聽起來你的類路徑中根本沒有log4.jar / log4j.properties。

將它添加到CLASSPATH中。

通常，log4j.properties應該位於WEB-INF/classes 。

它應該工作