主要是腳本里包含中國城市的資料，如果對資料沒興趣，不要繼續往下看了。可匯入使用，一直到縣或區，包括電話區號和郵編。（資料沒有經過嚴格驗證，若存在問題，請郵件聯絡[email protected]）

指令碼下載地址：http://download.csdn.net/detail/partner4java/5055425

程式碼示例下載地址：http://download.csdn.net/detail/partner4java/5055436

entity為jpa格式，不建議每次都查取，因為城市基本就不會變，建議設定為一個本機的Hash啟動載入或使用商業快取產品。

等級列舉：

package com.nongfu888.info.enums;

/**
 * 城市等級<br/>
 * 
 * 
 * @author partner4java
 * 
 */
public enum CityGrade {
	/** 省/自治區 */
	PROVINCIAL {
		@Override
		public int grade() {
			return 1;
		}
	},
	/** 直轄市 */
	MUNICIPALITIES {
		@Override
		public int grade() {
			return 1;
		}
	},
	/** 市 */
	CITY {
		@Override
		public int grade() {
			return 2;
		}
	},
	/** 縣\區 */
	DISTRICT {
		@Override
		public int grade() {
			return 3;
		}
	},
	/** 鄉鎮 */
	VILLAGES {
		@Override
		public int grade() {
			return 4;
		}
	};

	/**
	 * 返回顯示級別<br/>
	 * 
	 * @return 1為省會或直轄市（直轄市的2級也填寫市名稱）；2為市級（包括直轄市）；3為縣級或直轄市的區；4為鄉鎮。
	 */
	public abstract int grade();
}
 

package com.nongfu888.info.entity;

import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;

import com.nongfu888.info.enums.CityGrade;

/**
 * 城市物件
 * 
 * @author partner4java
 * 
 */
@Entity
public class City implements Serializable {
	private static final long serialVersionUID = 6258700470046195512L;

	/** 城市id */
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	private int cityId;

	/** 城市名稱 */
	@Column(length = 20)
	private String cityName;

	/** 郵編 */
	@Column(length = 6)
	private int zipCode;

	/** 電話區號,但是儲存為數字,去掉前面的0,取的時候需要加上0 */
	@Column(length = 3)
	private int areaCode;

	/** 城市級別 */
	@Enumerated(EnumType.STRING)
	private CityGrade grade;

	/** 所屬上級城市：為null，即為最頂級 -- 省、直轄市 */
	@ManyToOne(fetch = FetchType.LAZY)
	private City belongCity;

	/** 包含的城市 */
	@OneToMany(mappedBy = "belongCity", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
	private Set<City> containCitys = new HashSet<City>();

 

package com.nongfu888.info.service;

import com.nongfu888.info.entity.City;
import com.partner4java.orm.dao.P4jDao;

/**
 * 城市實體業務處理類
 * 
 * @author partner4java
 * 
 */
public interface CityService extends P4jDao<City> {

}

package com.nongfu888.info.service.impl;

import org.springframework.stereotype.Service;

import com.nongfu888.info.entity.City;
import com.nongfu888.info.service.CityService;
import com.partner4java.orm.dao.P4jJpaDaoSupport;

@Service
public class CityServiceBean extends P4jJpaDaoSupport<City> implements CityService {

}
 

測試用例又藉助了spring-test分支：

@ContextConfiguration(locations = { "/META-INF/spring/beans.xml" })
@TransactionConfiguration(transactionManager = "transactionManagerJpa")
public class CityServiceBeanTest extends AbstractTransactionalJUnit4SpringContextTests {
	private CityService cityService;
	private NamedParameterJdbcTemplate namedParameterJdbcTemplate;

	@Autowired
	public void setCityService(CityService cityService) {
		this.cityService = cityService;
	}

	@Autowired
	public void setNamedParameterJdbcTemplate(NamedParameterJdbcTemplate namedParameterJdbcTemplate) {
		this.namedParameterJdbcTemplate = namedParameterJdbcTemplate;
	}

	@Test
	public void testClear() {
	}

	@Test
	@Rollback(false)
	public void testDelete() {
		cityService.delete(1);
	}

	@Test
	public void testGet() {
		City city = cityService.get(1);
		System.out.println(city);
		System.out.println("=============================");
		System.out.println(city.getContainCitys());
		System.out.println("-------------------------");
		// System.out.println(city.getBelongCity());
	}

	@Test
	@Rollback(false)
	public void testSave() {
		City city = new City();
		city.setCityName("山東省");
		city.setGrade(CityGrade.PROVINCIAL);
		Set<City> containCitys = new HashSet<City>();
		containCitys.add(new City("濟寧市", 272100, 0537, CityGrade.CITY, city));
		containCitys.add(new City("濟南市", 272000, 0531, CityGrade.CITY, city));

		city.setContainCitys(containCitys);
		cityService.save(city);
	}

	@Test
	public void testQuery() {
		CityFormBean cityFormBean = new CityFormBean();
		cityFormBean.setCityName("山東省");

		PageData<City> citys = cityService.query(cityFormBean, new PageIndex(1), null);
		City city = citys.getResultlist().get(0);
		System.out.println(city);
		System.out.println("=============================");
		Set<City> chCitys = city.getContainCitys();
		for(City chCity:chCitys){
			System.out.println(chCity);
			System.out.println(chCity.getContainCitys());
		}
	}

}