省市区三级联动代码
sql语句在上一篇文章中，需要的童鞋可以自行领取。
首先是jsp页面：
省：
上面是jsp,剩下的是jquery，这个可以自己放到js中，建一个类似工具类的js，需要直接调用就Ok
$(function(){
$.post(
"findProvince",{},function(obj){
for(var i in obj){
$("[name='provinceid']").append("");
}
},"json"
);
})
function findCity(provinceid){
$.post(
"findCity",{father:provinceid},function(obj){
$("#but1").empty();
$("#but1").append("市：");
for ( var i in obj) {
$("[name='cityid']").append("");
}
},"json"
);
}
function findArea(father){
$.post(
"findArea",{father:father},function(obj){
$("#but2").empty();
$("#but2").append("区：");
for ( var i in obj) {
$("[name='areaid']").append("");
}
},"json"
);
}
controller层：
package com.lf.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.lf.mapper.AreaMapper;
import com.lf.mapper.CityMapper;
import com.lf.mapper.ProvinceMapper;
import com.lf.pojo.Area;
import com.lf.pojo.City;
import com.lf.pojo.Province;
@Controller
public class CityController {
@Autowired
ProvinceMapper p;
@Autowired
CityMapper c;
@Autowired
AreaMapper a;
@RequestMapping("findProvince")
@ResponseBody
public List findProvince(){
return p.findProvince();
}
@RequestMapping("findCity")
@ResponseBody
public List findCity(String father){
return c.findCity(father);
}
@RequestMapping("findArea")
@ResponseBody
public List findArea(String father){
return a.findArea(father);
}
}
下面是mapper层：
AreaMapper：
package com.lf.mapper;
import com.lf.pojo.Area;
import com.lf.pojo.AreaExample;
import java.util.List;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
public interface AreaMapper {
int countByExample(AreaExample example);
int deleteByExample(AreaExample example);
int deleteByPrimaryKey(Integer id);
int insert(Area record);
int insertSelective(Area record);
List selectByExample(AreaExample example);
Area selectByPrimaryKey(Integer id);
int updateByExampleSelective(@Param("record") Area record, @Param("example") AreaExample example);
int updateByExample(@Param("record") Area record, @Param("example") AreaExample example);
int updateByPrimaryKeySelective(Area record);
int updateByPrimaryKey(Area record);
@Select("select * from hat_area where father=#{father}")
List findArea(@Param("father")String father);
}
CityMapper:
package com.lf.mapper;
import com.lf.pojo.City;
import com.lf.pojo.CityExample;
import java.util.List;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
public interface CityMapper {
int countByExample(CityExample example);
int deleteByExample(CityExample example);
int deleteByPrimaryKey(Integer id);
int insert(City record);
int insertSelective(City record);
List selectByExample(CityExample example);
City selectByPrimaryKey(Integer id);
int updateByExampleSelective(@Param("record") City record, @Param("example") CityExample example);
int updateByExample(@Param("record") City record, @Param("example") CityExample example);
int updateByPrimaryKeySelective(City record);
int updateByPrimaryKey(City record);
@Select("select * from hat_city where father=#{father}")
List findCity(@Param("father")String father);
}
ProvinceMapper:
package com.lf.mapper;
import com.lf.pojo.Province;
import com.lf.pojo.ProvinceExample;
import java.util.List;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
public interface ProvinceMapper {
int countByExample(ProvinceExample example);
int deleteByExample(ProvinceExample example);
int deleteByPrimaryKey(Integer id);
int insert(Province record);
int insertSelective(Province record);
List selectByExample(ProvinceExample example);
Province selectByPrimaryKey(Integer id);
int updateByExampleSelective(@Param("record") Province record, @Param("example") ProvinceExample example);
int updateByExample(@Param("record") Province record, @Param("example") ProvinceExample example);
int updateByPrimaryKeySelective(Province record);
int updateByPrimaryKey(Province record);
@Select("select * from hat_province")
List findProvince();
}
下面是实体类：
Area:
package com.lf.pojo;
public class Area {
private Integer id;
private String areaid;
private String area;
private String father;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getAreaid() {
return areaid;
}
public void setAreaid(String areaid) {
this.areaid = areaid == null ? null : areaid.trim();
}
public String getArea() {
return area;
}
public void setArea(String area) {
this.area = area == null ? null : area.trim();
}
public String getFather() {
return father;
}
public void setFather(String father) {
this.father = father == null ? null : father.trim();
}
}
City:
package com.lf.pojo;
public class City {
private Integer id;
private String cityid;
private String city;
private String father;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getCityid() {
return cityid;
}
public void setCityid(String cityid) {
this.cityid = cityid == null ? null : cityid.trim();
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city == null ? null : city.trim();
}
public String getFather() {
return father;
}
public void setFather(String father) {
this.father = father == null ? null : father.trim();
}
}
Province:
package com.lf.pojo;
public class Province {
private Integer id;
private String provinceid;
private String province;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getProvinceid() {
return provinceid;
}
public void setProvinceid(String provinceid) {
this.provinceid = provinceid == null ? null : provinceid.trim();
}
public String getProvince() {
return province;
}
public void setProvince(String province) {
this.province = province == null ? null : province.trim();
}
}