一、数据库
create table if not exists t_student(
student_id int primary key not null auto_increment,
student_name varchar(30),
student_age int ,
student_address varchar(100),
student_qq varchar(20)
) engine = InnoDB default charset = utf8;
insert into t_student values(null,'aaa',21,'China','931391200');
insert into t_student values(null,'bbb',12,'shanghai','931391221');
insert into t_student values(null,'ccc',32,'guangzhou','931391212');
insert into t_student values(null,'ddd',14,'shenzhou','93139122');
insert into t_student values(null,'eee',15,'henan','931391243');
insert into t_student values(null,'fff',17,'zhengzhou','931391214');
insert into t_student values(null,'ggg',24,'taiyuan','931391221');
insert into t_student values(null,'hhh',22,'beijing','93139127');
insert into t_student values(null,'kkk',32,'jinan','93139126');
insert into t_student values(null,'jjj',21,'dingyuan','93139123');
insert into t_student values(null,'rrr',18,'dasong','93139121');
insert into t_student values(null,'eqq',31,'yuangu','93139128');
insert into t_student values(null,'sss',19,'tangshan','9313912112');
insert into t_student values(null,'iii',25,'tangchao','9313912113');
insert into t_student values(null,'lll',27,'niboer','9313912114');
insert into t_student values(null,'yyy',26,'bajisitan','9313912115');
insert into t_student values(null,'ttt',29,'meiguo','9313912116');
insert into t_student values(null,"中国好歌曲",3,'lundun','93139121122');
insert into t_student values(null,'中国好声音',23,'lundun','93139121122');
insert into t_student values(null,'中国好舞蹈',23,'lundun','93139121122');
insert into t_student values(null,'中国之声',23,'lundun','93139121122');
insert into t_student values(null,'中国演说家',23,'lundun','93139121122');
insert into t_student values(null,'中国春节晚会',23,'lundun','93139121122');
二、实体类
2.1数据库实体类
package com.h3c.zgc.user.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
import org.hibernate.annotations.GenericGenerator;
@Entity
@Table(name="t_student",catalog="itac")
public class Student {
@Id
@GenericGenerator(name="generator",strategy="increment")
@GeneratedValue(generator="generator")
@Column(name="student_id",unique=true,nullable=false)
private Integer studentId;
@Column(name="student_name")
private String studentName;
@Column(name="student_age")
private Integer studentAge;
@Column(name="student_address")
private String studentAddress;
@Column(name="student_qq")
private String studentQQ;
//getter setter toStriung
}
2.2分页实体类
package com.h3c.zgc.user.entity;
import java.util.ArrayList;
import java.util.List;
public class Page {
private int currentPageNum = 1;// 当前第几页(默认第一页),---主要用于传递到前台显示
private int totalPageNum;// 总页数
private int totalCount;// 总记录数
private int perPageSize = 5;// 每页显示的记录条数(默认5条)
private List entitys = new ArrayList();// 记录当前页中的数据条目
// 所有参数都进行修改
public Page(){}
public Page(int currentPageNum, int totalCount, int perPageSize,
List entitys) {
this.totalCount = totalCount;
this.perPageSize = perPageSize;
this.totalPageNum = totalCount % perPageSize == 0 ? totalCount
/ perPageSize : totalCount / perPageSize + 1;
this.entitys = entitys;
this.currentPageNum = currentPageNum<1?1:(currentPageNum>totalPageNum?totalPageNum:currentPageNum);//如果当前页小于第一页，则停留在第一页
}
// 使用默认的当前页和每页显示记录条数
public Page( int totalCount, List entitys) {
this.totalCount = totalCount;
this.totalPageNum = totalCount % perPageSize == 0 ? totalCount
/ perPageSize : totalCount / perPageSize + 1;
this.entitys = entitys;
this.currentPageNum = currentPageNum<1?1:(currentPageNum>totalPageNum?totalPageNum:currentPageNum);//如果当前页小于第一页，则停留在第一页
}
public int getCurrentPageNum() {
return currentPageNum;
}
public void setCurrentPageNum(int currentPageNum) {
this.currentPageNum = currentPageNum<1?1:(currentPageNum>totalPageNum?totalPageNum:currentPageNum);//如果当前页小于第一页，则停留在第一页
}
public int getTotalPageNum() {
return totalPageNum;
}
public void setTotalPageNum(int totalPageNum) {
this.totalPageNum = totalCount % perPageSize == 0 ? totalCount
/ perPageSize : totalCount / perPageSize + 1;
}
public int getTotalCount() {
return totalCount;
}
public void setTotalCount(int totalCount) {
this.totalCount = totalCount;
}
public int getPerPageSize() {
return perPageSize;
}
public void setPerPageSize(int perPageSize) {
this.perPageSize = perPageSize;
}
public List getEntitys() {
return entitys;
}
public void setEntitys(List entitys) {
this.entitys = entitys;
}
@Override
public String toString() {
return "PageUtil [currentPageNum=" + currentPageNum + ", totalPageNum="
+ totalPageNum + ", totalCount=" + totalCount
+ ", perPageSize=" + perPageSize + ", entitys=" + entitys + "]";
}
}
2.3接受查询参数的vo
package com.h3c.zgc.user.entity;
import javax.persistence.Column;
public class StudentView {
private Integer studentId;
private String studentName;
private Integer studentAge;
private String studentAddress;
private String studentQQ;
//getter setter toString
}
2.4接收分页数据，向前台传递表头排序的vo
package com.h3c.zgc.user.entity;
public class PageView {
private int currentPageNum = 1;// 当前第几页(默认第一页),---主要用于传递到前台显示
private int totalPageNum;// 总页数
private int perPageSize = 5;// 每页显示的记录条数(默认5条)
private String sortRule; //分页规则，asc升序，desc降序
private String sortColumn; //分页列名
//getter setter toString
}
dao层
package com.h3c.zgc.user.dao;
import java.util.List;
import javax.annotation.Resource;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate4.HibernateCallback;
import org.springframework.orm.hibernate4.support.HibernateDaoSupport;
import org.springframework.stereotype.Repository;
import com.h3c.zgc.user.entity.PageView;
import com.h3c.zgc.user.entity.Student;
import com.h3c.zgc.user.entity.StudentView;
@Repository
public class StudentDao extends HibernateDaoSupport{
@Resource
private void set(SessionFactory sessionFactory){
this.setSessionFactory(sessionFactory);
}
public void insertStudent(Student student){
this.getHibernateTemplate().save(student);
}
@SuppressWarnings("unchecked")
public List getStudents(final PageView pv,StudentView sv){
final String hql = this.getHql(sv, "from Student s where 1=1",pv);
final int offset = (pv.getCurrentPageNum()-1)*pv.getPerPageSize();
List students = this.getHibernateTemplate().execute(new HibernateCallback() {
@Override
public Object doInHibernate(Session session) throws HibernateException {
Query query = session.createQuery(hql);
query.setFirstResult(offset);
query.setMaxResults(pv.getPerPageSize());
return query.list();
}
});
return students;
}
public int getTotalCount(StudentView sv){
String hql = this.getHql(sv, "select count(studentId) from Student s where 1=1",null);
int count= ((Long)this.getHibernateTemplate().find(hql.toString()).iterator().next()).intValue();
return count;
}
private String getHql(StudentView sv, String hqlHeader,PageView pv){
StringBuffer hql = new StringBuffer(hqlHeader);
if(null!=sv.getStudentId()){
hql.append( " and studentId = '"+sv.getStudentId()+"'");
}
if(null!=sv.getStudentName()&&""!=sv.getStudentName()){
hql.append(" and studentName like '%"+sv.getStudentName()+"%'");
}
if(null!=sv.getStudentAge()){
hql.append(" and studentAge = '"+sv.getStudentAge()+"'");
}
if(null!=sv.getStudentAddress()&&""!=sv.getStudentAddress()){
hql.append(" and studentAddress like '%"+sv.getStudentAddress()+"%'");
}
if(null!=sv.getStudentQQ()&&""!=sv.getStudentQQ()){
hql.append(" and studentQQ like '%"+sv.getStudentQQ()+"%'");
}
if(null!=pv&&null!=pv.getSortColumn()&&""!=pv.getSortColumn()){
hql.append(" order by "+pv.getSortColumn()+" "+pv.getSortRule());
}
return hql.toString();
}
public List getStudentsByName(String studentName) {
return (List) this.getHibernateTemplate().find("select s.studentName from Student s where s.studentName like '%"+studentName+"%'");
}
public Student getStudent(Integer studentId){
return this.getHibernateTemplate().get(Student.class, studentId);
}
}
service层
package com.h3c.zgc.user.service;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.h3c.zgc.user.dao.StudentDao;
import com.h3c.zgc.user.entity.PageView;
import com.h3c.zgc.user.entity.Student;
import com.h3c.zgc.user.entity.StudentView;
@Service
public class StudentService {
@Resource
private StudentDao studentDao;
@Transactional
public void insertStudent(Student student){
this.studentDao.insertStudent(student);
}
public List getStudents(final PageView pv,StudentView sv){
return this.studentDao.getStudents(pv, sv);
}
public int getTotalCount(StudentView sv){
return this.studentDao.getTotalCount(sv);
}
public List getStudentsByName(String studentName){
return this.studentDao.getStudentsByName(studentName);
}
public Student getStudent(Integer studentId){
return this.studentDao.getStudent(studentId);
}
}
controller层
package com.h3c.zgc.user.controller;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.google.gson.Gson;
import com.h3c.zgc.user.entity.Page;
import com.h3c.zgc.user.entity.PageView;
import com.h3c.zgc.user.entity.Student;
import com.h3c.zgc.user.entity.StudentView;
import com.h3c.zgc.user.service.StudentService;
@Controller
@Scope
public class StudentController {
@Resource
private StudentService studentService;
@RequestMapping("getAllStudent")
public String getAllStudent(PageView pv,StudentView sv,HttpServletRequest request){
//获取总页数
int totalCount = this.studentService.getTotalCount(sv);
Page page = new Page(pv.getCurrentPageNum(), totalCount, 5, null);
//如果当前页大于总页数，则将最大页数设置为当前页
int currentNum = pv.getCurrentPageNum()>page.getTotalPageNum()?page.getTotalPageNum():pv.getCurrentPageNum();
pv.setCurrentPageNum(currentNum);
//获取集合
List students = this.studentService.getStudents(pv, sv);
page.setEntitys(students);
request.setAttribute("page", page);//传递分页参数，
request.setAttribute("view", sv);//封装前台查询参数
request.setAttribute("pageView", pv);//主要是表头排序
// map.put("sortColumn", pv.getSortColumn());
// map.put("sortRule", pv.getSortRule());
System.out.println(students);
System.out.println(page);
System.out.println(pv);
System.out.println("年龄："+sv.getStudentAge());
return "user/userList";
}
@RequestMapping("getNames")
public void getNames(String studentName,HttpServletResponse response){
List studentNames = this.studentService.getStudentsByName(studentName);
System.out.println(studentNames);
Gson gson = new Gson();
String strs = gson.toJson(studentNames);
response.setContentType("text/html;charset=UTF-8");
try {
response.getWriter().write(strs);
} catch (IOException e) {
}
System.out.println(strs);
}
@RequestMapping("getStudent")
public String getStudent(Integer studentId,HttpServletRequest request){
Student s = this.studentService.getStudent(studentId);
request.setAttribute("s", s);
return "user/updateStudent";
}
}
主页
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
Insert title here
查找所有用户
student全部展示页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
Insert title here
" method="post">
student修改页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
Insert title here
