Drop-down list box problem

totlechao3

<SELECT name = "ywy" size = "1">
   <c: forEach var = "ywyList" items = "$ {ywyArr}">
   <OPTION value = "$ {ywyList}"> $ {ywyList} </ OPTION>
   </ c: forEach>
</ SELECT>
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Take the value from ywyArr, display the drop-down list box in jsp, and output in servlet are all Chinese. How to display garbled characters like com.hy.YwyBean@db5b3f in jsp?

lrlhit

You use jsf, what you output is not garbled, but an object of your com.hy.YwyBean.

totlechao3

How to make him appear in Chinese?

hannah2222

Your ywyList is an object. The direct output object in JSTL will call the toString () method by default, but if you use JDO or Hibernate, this default call seems to be problematic. What is the suggestion that you use this object Just write the attribute. For example, if there is a name attribute in ywyList and you want to output it, then the above statement should be written as
<SELECT name = "ywy" size = "1">
   <c: forEach var = "ywyList" items = "$ {ywyArr}">
   <OPTION value = "$ {ywyList.name}"> $ {ywyList.name} </ OPTION>
   </ c: forEach>
</ SELECT>

totlechao3

Still not working, dizzy.

hannah2222

Why not

totlechao3

Or com.hy.YwyBean@db5b3f

totlechao3

The modified one also corresponds to Bean.
  <SELECT name = "ywy" size = "1">
   <c: forEach var = "ywyArr" items = "$ {ywyArr}">
   <OPTION value = "$ {ywyArr.dzyname}"> $ {ywyArr.dzyname} </ OPTION>
   </ c: forEach>
   </ SELECT>

hannah2222

dzyname Is this also an object?

totlechao3

No, dzyname is a property of YwyBean.