枚举值封装：
http://blog.csdn.net/hanjun0612/article/details/72845960
一 基本类型
这里接着说前台调用枚举值。
首先，controller层
读取对应的状态1，放入modelmap
@Controller
@RequestMapping("test")
public class TestController extends TestBaseController {
@RequestMapping(value = "test1.do")
public ModelAndView test1(HttpServletRequest request, HttpServletResponse response, ModelMap mode) throws Exception {
mode.addAttribute("item", 1);
return new ModelAndView("test/test");
}
}前台显示：
<%@ page import="com.sanju.sanjuSCM.utils.EnumHelper" %>
<%@ page import="com.sanju.sanjuSCM.model.EnumList.EnumList" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<%=EnumHelper.getEnumItem(EnumList.IsDeleteEnum.class, Integer.valueOf((Integer) request.getAttribute("item"))).getItemCN()%>
<%=EnumHelper.getEnumItem(EnumList.IsDeleteEnum.class, Integer.valueOf((Integer) request.getAttribute("item"))).getItemEN()%>
</body>
</html>至此，我们也了解了。其实
mode.addAttribute("item", 1);
只是将数据放入了request.getAttribute("item")中。
前台可以通过这个方法获取到，并且通过前一篇 http://blog.csdn.net/hanjun0612/article/details/72845960 的枚举操作方法，来转换对应的中英文
二 泛型集合
Controller：
@Controller
@RequestMapping("test")
public class TestController extends TestBaseController {
@RequestMapping(value = "test1.do")
public ModelAndView test1(HttpServletRequest request, HttpServletResponse response, ModelMap mode) throws Exception {
List<SysUser> list=new ArrayList<SysUser>();
SysUser u1=new SysUser();
u1.setAccount("a");
u1.setUsernamecn("Testa");
u1.setIslock(1);
list.add(u1);
SysUser u2=new SysUser();
u2.setAccount("b");
u2.setUsernamecn("Testb");
u2.setIslock(0);
list.add(u2);
mode.addAttribute("list", list);
return new ModelAndView("test/test");
}
}JSP：
1 使用：<%%>解决
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr class="tr1">
<th>账号</th>
<th>姓名</th>
<th>状态</th>
</tr>
<%
for(SysUser v:(List<SysUser>)request.getAttribute("list")){
%>
<tr>
<td><%=v.getAccount()%></td>
<td><%=v.getUsernamecn()%></td>
<td><%=EnumHelper.getEnumItem(EnumList.IsDeleteEnum.class, v.getIslock()).getItemCN()%></td>
</tr>
<%
}
%>
</table>2 使用 ： EL表达式
<%int i=0;%>
<c:forEach items="${list}" var="item">
<tr class="tr1">
<td>${item.account}</td>
<td>${item.usernamecn}</td>
<td><%=EnumHelper.getEnumItem(EnumList.IsDeleteEnum.class, ((List<SysUser>)request.getAttribute("list")).get(i).getIslock()).getItemCN()%></td>
</tr>
<%i++;%>
</c:forEach>