写了三个bean,分别是Person,Address和PhoneNumber,在jsp页面中使用如下语句:
<tr>${person.name}</tr>
<tr>${person.age}</tr>
<tr>${person.address.line1}</tr>
<tr>${person.address.town}</tr>
<tr>${person.address.photoNumbers.number}</tr>
<tr>${person.address.photoNumbers.std}</tr>前两句没有问题,问题从第三句有bean嵌套开始,出现如下提示:
javax.servlet.ServletException: Unable to find a value for "address" in object of class "com.apress.projsp20.ch03.Person" using operator "."请高手帮帮忙,这是什么问题。
<tr>${person.name}</tr>
<tr>${person.age}</tr>
<tr>${person.address.line1}</tr>
<tr>${person.address.town}</tr>
<tr>${person.address.photoNumbers.number}</tr>
<tr>${person.address.photoNumbers.std}</tr>前两句没有问题,问题从第三句有bean嵌套开始,出现如下提示:
javax.servlet.ServletException: Unable to find a value for "address" in object of class "com.apress.projsp20.ch03.Person" using operator "."请高手帮帮忙,这是什么问题。
解决方案 »
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