Question

在Student类中，构造函数带有一些值。我想在VIP栏中打印是或否。当布尔值为public class Student { private String firstName; private String lastName; private boolean goldCustomer; public Student(String firstName, String lastName, boolean goldCustomer) { super(); this.firstName = firstName; this.lastName = lastName; this.goldCustomer = goldCustomer; } public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } public boolean isGoldCustomer() { return goldCustomer; } public void setGoldCustomer(boolean goldCustomer) { this.goldCustomer = goldCustomer; } }时为是，反之亦然。

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page import="java.util.* , com.jsptag.demo.Student" %>
<%
  List<Student> students = new ArrayList< >();
  students.add( new Student("Rahul" , "Rawat" , false));
  students.add( new Student("Rohit" , "Negi" , true));
  students.add( new Student("Mahesh" , "Gupta" , false));   
  pageContext.setAttribute("myStudents", students);
%>

<html>
<body>
<table border="1">
  <tr>
     <th>First Name</th>
     <th>Last Name</th>
     <th>VIP ?</th>
  </tr>
  <c:forEach var="data" items="${myStudents}">
    <tr> 
      <td>${data.firstName}</td> 
      <td>${data.lastName}</td>  
      <td>${data.goldCustomer}</td> 
    </tr>   
  </c:forEach>  
</table>
</body>
</html>

我的JSP页面

_PARTITIONTIME>=&PARTITIONDATE

Answer 1

它应该与三元运算符一起使用：

<td> ${data.goldCustomer ? 'Yes' : 'No'} </td>

如何返回String如果Boolean为True

1 个答案: