excel导入错误的详细信息

src/com/platform/controller/ExcelController.java

@@ -4,8 +4,6 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.RandomAccessFile;
-import java.io.StringWriter;
-import java.io.Writer;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
@@ -18,10 +16,6 @@ import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-
-
-
-
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.lang.StringUtils;
 import org.apache.log4j.Logger;