我需要为 jsp 中表格中的特定单元格分配一个值，并创建了一个 id 为“table1”的表格:
现在使用以下命令为此表中的单元格分配值:
<%@ page import="java.io.*"%>
<html>
<head>
</head>
<body>
<table id="table1" border = "1">
<%
var table = document.getElementById("table1");
table.rows[1].cells[2].innerHTML = "UP";
%>
<tr>
<th></th>
<th>DEV1</th>
<th>DEV2</th>
<th>SIT1</th>
<th>SIT2</th>
<th>UAT</th>
<th>NFT</th>
</tr>
<tr>
<td>SFG Process</td>
<td>row 1, cell 1</td>
<td>row 1, cell 2</td>
<td>row 1, cell 3</td>
<td>row 1, cell 4</td>
<td>row 1, cell 5</td>
<td>row 1, cell 6</td>
</tr>
<tr>
<td>SCC Process</td>
<td>row 2, cell 1</td>
<td>row 2, cell 2</td>
<td>row 2, cell 3</td>
<td>row 2, cell 4</td>
<td>row 2, cell 5</td>
<td>row 2, cell 6</td>
</tr>
</table>
</body>
</html>
但是 Tomcat 给出了这个错误:
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 9 in the jsp file: /emt/xyz.jsp
var cannot be resolved to a type
6: <table id="table1" border = "1">
7:
8: <%
9: var table = document.getElementById("table1");
10: table.rows[1].cells[2].innerHTML = "UP";
11: %>
12:
An error occurred at line: 9 in the jsp file: /emt/xyz.jsp
document cannot be resolved
6: <table id="table1" border = "1">
7:
8: <%
9: var table = document.getElementById("table1");
10: table.rows[1].cells[2].innerHTML = "UP";
11: %>
12:
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:443)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:356)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:321)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
最佳答案
<%
var table = document.getElementById("table1");
table.rows[1].cells[2].innerHTML = "UP";
%>
您在jsp中编写java脚本代码，因此编译失败。
您只需删除那里的代码并在 <script> 之间添加即可标签
<SCRIPT type="text/javascript">
var table = document.getElementById("table1");
table.rows[1].cells[2].innerHTML = "UP";
</SCRIPT>
See this link以获得完整的引用和示例。
关于java - 使用单元格 ID 为表中的单元格分配值，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20217183/