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Drop-down list box problem

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Post time: 2020-1-26 14:20:01
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<SELECT name = "ywy" size = "1">
   <c: forEach var = "ywyList" items = "$ {ywyArr}">
   <OPTION value = "$ {ywyList}"> $ {ywyList} </ OPTION>
   </ c: forEach>
</ SELECT>
------------------
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?
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Post time: 2020-2-17 12:00:02
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You use jsf, what you output is not garbled, but an object of your com.hy.YwyBean.
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 Author| Post time: 2020-2-17 16:00:02
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How to make him appear in Chinese?
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Post time: 2020-2-23 17:30:02
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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>
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 Author| Post time: 2020-3-6 16:30:01
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Still not working, dizzy.
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Post time: 2020-3-8 00:30:01
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Why not
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 Author| Post time: 2020-3-8 13:15:01
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Or com.hy.YwyBean@db5b3f
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 Author| Post time: 2020-3-8 15:00:01
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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>
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Post time: 2020-3-18 21:00:02
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dzyname Is this also an object?
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 Author| Post time: 2020-3-24 12:45:01
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No, dzyname is a property of YwyBean.
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