求个为大神看看dwr与hibernate整合

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  <script type="text/javascript" src="dwr/engine.js"></script>
  <script type="text/javascript" src="dwr/util.js"></script>
  <script type="text/javascript" src="dwr/interface/BookDaoImpl.js"></script>
  <script type="text/javascript">
  function temp(){
  BookDaoImpl.findBooks(books);
  }
  function books(date){
  alert(date.length);
  dwr.util.removeAllRows("tab");
  dwr.util.addRows("tab",date,[
  function(d){return d.book_id;},
  function(d){return d.book_isbn;},
  function(d){return d.book_price;},
  function(d){return d.book_pubdate;}
  ]);
  }
  </script>
  <body onload="temp()">
    图书搜索:<input type="text" id="text" /><input type="button" value="搜索" />
    <table>
    <thead>
    <tr>
    <td>书名</td>
    <td>编号</td>
    <td>价格</td>
    <td>日期</td>
    </tr>
    </thead>
    <tbody id="tab">
    </tbody>
    </table>

  </body>

报的错误是:log4j:WARN No appenders could be found for logger (org.directwebremoting.util.Logger).


log4j:WARN Please initialize the log4j system properly.

我下载了log4j放在src目录下也是不行,d.book_id都是空的

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