Question

关于STRUTS标签的问题

学习Struts标签的multibox没弄明白 自己弄测试结果报这个错 请明白的帮我看看问题
谢谢各位
org.apache.jasper.JasperException: Exception in JSP: /update.jsp:29

29: <logic:iterate id="name" property="intName" >
30: <html:multibox property="selectedName">
31: <bean:write name="name"/>
32: </html:multibox>

起 因

java.lang.NullPointerException: 属性名称是NULL

ActionForm是这个

private String[] intName={"tom","jim","tim","him"};
private String[] selectedName={};
public String[] getSelectedName() {
return selectedName;
}

public void setSelectedName(String[] selectedName) {
this.selectedName = selectedName;}

Answer 1

selectedName 为空，你还是实例化一下吧！