el表达式的判断

el的判断
Html代码 复制代码 收藏代码
  1.  
  2. <c:if test="${empty currentRoleId}"> 
  3.      currentRoleId为空 
  4. c:if> 
  5. <c:if test="${not empty currentRoleId}"> 
  6.      currentRoleId不为空 
  7. c:if> 
  8.  
  9.  
  10. <c:if test="${requestScope.currentRoleId eq applicationScope.sysAdmin}"> 
  11.      currentRoleId和sysAdmin相等 
  12. c:if> 
  13.  
  14.  
  15. <c:if test="${!(requestScope.currentRoleId eq applicationScope.sysAdmin)}"> 
  16.      currentRoleId和sysAdmin不相等 
  17. c:if> 
  18.  
  19.  
  20.  
  21. ${!(requestScope.currentRoleId eq applicationScope.sysAdmin) ? "两者不相等" : "两者相等"} 
  22.  
  23. ${not empty currentRoleId ? "不为空" : "为空"} 


     currentRoleId为空


     currentRoleId不为空




     currentRoleId和sysAdmin相等




     currentRoleId和sysAdmin不相等




${!(requestScope.currentRoleId eq applicationScope.sysAdmin) ? "两者不相等" : "两者相等"}

${not empty currentRoleId ? "不为空" : "为空"}

el的判断
Html代码 复制代码 收藏代码
  1.  
  2. <c:if test="${empty currentRoleId}"> 
  3.      currentRoleId为空 
  4. c:if> 
  5. <c:if test="${not empty currentRoleId}"> 
  6.      currentRoleId不为空 
  7. c:if> 
  8.  
  9.  
  10. <c:if test="${requestScope.currentRoleId eq applicationScope.sysAdmin}"> 
  11.      currentRoleId和sysAdmin相等 
  12. c:if> 
  13.  
  14.  
  15. <c:if test="${!(requestScope.currentRoleId eq applicationScope.sysAdmin)}"> 
  16.      currentRoleId和sysAdmin不相等 
  17. c:if> 
  18.  
  19.  
  20.  
  21. ${!(requestScope.currentRoleId eq applicationScope.sysAdmin) ? "两者不相等" : "两者相等"} 
  22.  
  23. ${not empty currentRoleId ? "不为空" : "为空"} 


     currentRoleId为空


     currentRoleId不为空




     currentRoleId和sysAdmin相等




     currentRoleId和sysAdmin不相等




${!(requestScope.currentRoleId eq applicationScope.sysAdmin) ? "两者不相等" : "两者相等"}

${not empty currentRoleId ? "不为空" : "为空"}

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