关于页面显示问题？

Question

加个判断为null就输出空，不就好了嘛

Answer 1

<td align=center><%=(rs.getString("hd"))%></td>如何在这个表格输出上修改一下. 怎么改呀.

Answer 2

<td align=center><%if rs.getString("hd")=null then response.write "" else response.write rs.getString("hd") end if%></td>

Answer 3

Generated servlet error:
    [javac] Compiling 1 source fileC:\Tomcat5.0\work\Catalina\localhost\_\org\apache\jsp\bb\wrbtest_jsp.java:407: '(' expected
if rs.getString("hd")= null then response.write "" else response.write rs.getString("hd") end if
   ^An error occurred at line: 111 in the jsp file: /bb/wrbtest.jspGenerated servlet error:
C:\Tomcat5.0\work\Catalina\localhost\_\org\apache\jsp\bb\wrbtest_jsp.java:408: illegal start of expression
      out.write("</td>\r\n");
                            ^
2 errors
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:127)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:351)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:415)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:458)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:553)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:291)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)

Answer 4

rs.getString("hd")=null 
改为
rs.getString("hd")==null 

Answer 5

你用的JSP,5楼写的是ASP5楼的修改为<td align=center> <%=(rs.getString("hd")== null ? "" : rs.getString("hd") )%> </td>

Answer 6

<td align=center> <%=(rs.getString("hd")== null ? "" : rs.getString("hd") )%> </td>