Java 将Bean中的数据用于JSF
我创建了一个bean来从Netbeans JavaDB获取数据。但是,在阅读了互联网和一些书籍之后,我仍然不知道如何将bean中的数据转换成JSF。请任何人帮忙 这是我的密码Java 将Bean中的数据用于JSF,java,jsf,Java,Jsf,我创建了一个bean来从Netbeans JavaDB获取数据。但是,在阅读了互联网和一些书籍之后,我仍然不知道如何将bean中的数据转换成JSF。请任何人帮忙 这是我的密码 package beans; import java.sql.*; import java.util.ArrayList; import java.util.List; public class RankBean { String error; List<Object> allData=new
package beans;
import java.sql.*;
import java.util.ArrayList;
import java.util.List;
public class RankBean
{
String error;
List<Object> allData=new ArrayList<Object>();
public String FORENAME,SURNAME;
public Integer SCORE;
Object obj=new Object();
public void setObj(Object obj) {
this.obj = obj;
}
public String getError() {
return error;
}
public List getDb_Data()
{
int i=0;
try
{
String SQLQuery;
Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
Connection conn = DriverManager.getConnection("jdbc:derby://localhost:1527/nestasark","","");
Statement statement = conn.createStatement();
SQLQuery="SELECT FORENAME,SURNAME,SCORE FROM USERS";
ResultSet resultSet=statement.executeQuery(SQLQuery);
while(resultSet.next())
{
DataFields d=new DataFields(resultSet.getString(1),resultSet.getString(2), resultSet.getInt(3));
allData.add(i,d);
i++;
}
}
catch(Exception ex)
{
error="<b>Contact Administrator :</b><br/>" + ex;
System.out.println("Your query is not working" + ex);
}
return allData;
}
public String getFname()
{
this.FORENAME=((DataFields)obj).FName;
return this.FORENAME;
}
public Integer getScore() {
this.SCORE=((DataFields)obj).Score;
return this.SCORE;
}
public String getLname() {
this.SURNAME=((DataFields)obj).LName;
return this.SURNAME;
}
public class DataFields
{
public String FName,LName;
public Integer Score;
public DataFields(String fname,String lname, Integer score)
{
this.FName=fname;
this.LName=lname;
this.Score=score;
}
}
}
以下是JSF代码的一部分:
<div class="panel panel-default">
<div class="panel-heading">
Top Players
</div>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th class='col-md-1'>
Place
</th>
<th>
User
</th>
<th>
Points
</th>
</tr>
</thead>
<tbody>
<th>#{RankBean.getDb_Data}</th>
</tbody>
</table>
</div>
</div>
<div class="col-md-4">
<div class="panel panel-default">
<div class="panel-heading">
Stats
</div>
<ul class="list-group">
<li class="list-group-item">
1st globally
</li>
<li class="list-group-item">
9999 total points
</li>
<li class="list-group-item">
#{orgBean.memberCount} students
</li>
<li class="list-group-item">
#{orgBean.org.groupCount} groups
</li>
</ul>
</div>
在place user and points表中,我放置了{RankBean.getDb_Data}只是为了测试它是否得到了,但没有。
谢谢
SSJ如果您试图使用jsf创建表结构。然后简单地使用datatable:-
还有其他几个标记库也可以使用。您还应该展示相应的JSF视图的外观。