Question

我想在panelgrid中调用动态值而不是datatable。在datatable中我得到动态值，但我想在panelgrid中调用动态值。如果有人知道如何在panelgrid中访问动态值，那么给我回答。

java class：

  public List<Student> getStuDetails() {
            Transaction trns = null;
            students = new ArrayList<Student>();        
            Session session = getSession();
            try {
                trns = session.beginTransaction();
                String sql = "select name,age,profession from student where sid = " + sid;
                SQLQuery query = session.createSQLQuery(sql).addScalar("name", new StringType()).addScalar("age", new IntegerType()).addScalar("profession", new StringType());
                List<Object[]> rows = query.list();
                for (Object[] row : rows) {
                    Student student = new Student();
                    student.setName(row[0].toString());
                    student.setAge(Integer.parseInt(row[1].toString()));
            student.setProfession(row[2].toString());                
                    students.add(student);
                }                      
                trns.commit();
            } catch (HibernateException e) {
                e.printStackTrace();           
                trns.rollback();
            } finally {
                session.flush();
                session.close();
            }
            return students;
        }

jsf代码：

<p:panelGrid id="pgrid" columns="2">
    <p:outputLabel value="Name:"/>
        <p:outputLabel value="Austin"/>
        <p:outputLabel value="Age:"/>
        <p:outputLabel value="26"/>
        <p:outputLabel value="Profession"/>
        <p:outputLabel value="job"/>
</p:panelGrid>

Answer 1

我修改了你的代码并为我工作。我创建了三个变量sname，sage和sprofession，还需要创建getter / setter，这里我采用的是托管bean名称＆＃34; student＆＃34; 。

更新了Java类：

private String sname;
private Integer sage;
private Integer sprofession;    
public List<Student> getStuDetails() {
            Transaction trns = null;
            students = new ArrayList<Student>();        
            Session session = getSession();
            try {
                trns = session.beginTransaction();
                String sql = "select name,age,profession from student where sid = " + sid;
                SQLQuery query = session.createSQLQuery(sql).addScalar("name", new StringType()).addScalar("age", new IntegerType()).addScalar("profession", new StringType());
                List<Object[]> rows = query.list();
                for (Object[] row : rows) {
                    Student student = new Student();
                    student.setName(row[0].toString());
                    student.setAge(Integer.parseInt(row[1].toString()));
            student.setProfession(row[2].toString());                
                    students.add(student);
                }
                sname = students.get(0).setName();
                sage = students.get(0).setAge(); 
            sprofession = students.get(0).setProfession();          
                trns.commit();
            } catch (HibernateException e) {
                e.printStackTrace();           
                trns.rollback();
            } finally {
                session.flush();
                session.close();
            }
            return students;
        }

更新了panelgrid：

<p:panelGrid id="pgrid" columns="2">
    <p:outputLabel value="Name:"/>
        <p:outputLabel value="#{student.sname}"/>
        <p:outputLabel value="Age:"/>
        <p:outputLabel value="#{student.sage}"/>
        <p:outputLabel value="Profession"/>
        <p:outputLabel value="#{student.sprofession}"/>
</p:panelGrid>

注意：但是如果您将使用panelgrid而不是datatable，那么将来您无法导出panelgrid数据，因为不支持panelexporter panelgrid或面板。

在panelgrid中调用Dynamic值而不是datatable

1 个答案: