Question

如何在Spring WebFlow项目中为此hibernate调用添加排序。我正在开发一个Spring Webflow项目，我必须在以下调用中添加排序。

@SuppressWarnings("unchecked")
    public List<School_lookupModel> getSelectableSchools(String b) {
        String myLike = b + "%";
        Session mySession = sessionFactory.getCurrentSession();
        List<School_lookupModel> mySchools = (List<School_lookupModel>) mySession
                .createCriteria(School_lookupModel.class)
                .add(Restrictions.like("school", myLike)).list();

        return mySchools;
    }

我尝试了以下代码但不会构建：

public List<School_lookupModel> getSelectableSchools(String b) {

        String myLike = b + "%";

        Session mySession = sessionFactory.getCurrentSession();

        List<School_lookupModel> mySchools = (List<School_lookupModel>) mySession
                .createCriteria(School_lookupModel.class)
            .add(Restrictions.like("school", myLike)
            .addOrder(Order.asc("school"))).list();


        return mySchools;
    }

所以有人可以告诉我如何在第一次通话中添加订单..谢谢我在构建中遇到以下两个错误：

语法错误，插入“）”完成和对于SimpleExpression类型

，方法addOrder（Order）未定义

这是我的班级：

package org.xxx.schoolvisit.model;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.validation.constraints.Size;

import org.hibernate.annotations.OrderBy;

@Entity
@Table(name = "school")
public class School_lookupModel {

    @Override
    public String toString() {
        return "School_lookupModel [school=" + school + ", school_name="
                + school_name + ", region=" + region + ", district=" + district
                + ", getSchool()=" + getSchool() + ", getSchool_name()="
                + getSchool_name() + ", getRegion()=" + getRegion()
                + ", getDistrict()=" + getDistrict() + ", getClass()="
                + getClass() + ", hashCode()=" + hashCode() + ", toString()="
                + super.toString() + "]";
    }

    @Id
    @Column(name = "school")
    private String school; 

    @Column(name = "school_name")
    private String school_name; 

    @Column(name = "region")
    private String region; 

    @Column(name = "district")
    private String district;

    public String getSchool() {
        return school;
    }

    public void setSchool(String school) {
        this.school = school;
    }

    public String getSchool_name() {
        return school_name;
    }

    public void setSchool_name(String school_name) {
        this.school_name = school_name;
    }

    public String getRegion() {
        return region;
    }

    public void setRegion(String region) {
        this.region = region;
    }

    public String getDistrict() {
        return district;
    }

    public void setDistrict(String district) {
        this.district = district;
    } 


}

Answer 1

你错过了这个级别的paranthesis

  .add(Restrictions.like("school", myLike)
  .addOrder(Order.asc("Name")).list();

像这样做

 .add(Restrictions.like("school", myLike)
  .addOrder(Order.asc("Name"))).list();

你得到的错误是什么？看一下这里的例子： http://docs.jboss.org/hibernate/orm/3.3/reference/en/html/querycriteria.html 看来你的语法是正确的，它必须是O / R映射的东西，你是否使用注释将类映射到表或xml文件？你有一个名为Name的字段，或者你有名字还是NAME？你试过这些吗？

如何在Spring WebFlow项目中为此hibernate调用添加排序

1 个答案: