关于jstl标签库的forEach，out的简单使用记录

笃信好学，自然宽和

// @WebServlet 在Tomcat 6.0没有此类 ,Tomcat 7.0的server.api才有；可以将Tomcat 7.0下的\lib\servlet-api.jar文件拷贝到项目的WebRoot\WEB-INF\lib目录，然后导入到工程中。

@WebServlet("/TestCaipiao")

public class TestCaipiao extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
GetNum getNum = new GetNum();
List<Num> list = getNum.getNum();

request.setAttribute("num1", list);
request.getRequestDispatcher("index.jsp").forward(request, response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}

}

---------------------

<a href="TestCaipiao"><h3>这是测试使用的jsp</h3></a>

<table align="center" border="1" width="300" height="100" >

<tr>
<td id="redball" align="center">RedBall</td>
<td id="blueball" align="center">BlueBall</td>
</tr>
<c:forEach items="${num1}" var="num">
<tr>
<td id="r1" align="center"><c:out value="${num.redball}"></c:out></td>
<td id="b1" align="center"><c:out value="${num.blueball}"></c:out></td>
</tr>
</c:forEach>

</table>

--------------------------------------------------------------------------------

使用c:forEach，c:out标签，需要在项目中加入jstl的jar包；在配置文件web.xml中进行如下配置；

<jsp-config>
<taglib>
<taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri>
<taglib-location>/WEB-INF/fmt.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/fmt-rt</taglib-uri>
<taglib-location>/WEB-INF/fmt-rt.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/c.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/core-rt</taglib-uri>
<taglib-location>/WEB-INF/c-rt.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/sql</taglib-uri>
<taglib-location>/WEB-INF/sql.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/sql-rt</taglib-uri>
<taglib-location>/WEB-INF/sql-rt.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/x</taglib-uri>
<taglib-location>/WEB-INF/x.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/x-rt</taglib-uri>
<taglib-location>/WEB-INF/x-rt.tld</taglib-location>
</taglib>
</jsp-config>

关于jstl标签库的forEach，out的简单使用记录

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