Springboot 实现 Restful 服务，基于 HTTP / JSON 传输

springboot-restful/src/main/java/org/spring/springboot/service/CityService.java

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+package org.spring.springboot.service;
+
+import org.spring.springboot.domain.City;
+
+import java.util.List;
+
+/**
+ * 城市业务逻辑接口类
+ *
+ * Created by bysocket on 07/02/2017.
+ */
+public interface CityService {
+
+    /**
+     * 获取城市信息列表
+     *
+     * @return
+     */
+    List<City> findAllCity();
+
+    /**
+     * 根据城市 ID,查询城市信息
+     *
+     * @param id
+     * @return
+     */
+    City findCityById(Long id);
+
+    /**
+     * 新增城市信息
+     *
+     * @param city
+     * @return
+     */
+    Long saveCity(City city);
+
+    /**
+     * 更新城市信息
+     *
+     * @param city
+     * @return
+     */
+    Long updateCity(City city);
+
+    /**
+     * 根据城市 ID,删除城市信息
+     *
+     * @param id
+     * @return
+     */
+    Long deleteCity(Long id);
+}

springboot-restful/src/main/java/org/spring/springboot/service/impl/CityServiceImpl.java

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+package org.spring.springboot.service.impl;
+
+import org.spring.springboot.dao.CityDao;
+import org.spring.springboot.domain.City;
+import org.spring.springboot.service.CityService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+/**
+ * 城市业务逻辑实现类
+ *
+ * Created by bysocket on 07/02/2017.
+ */
+@Service
+public class CityServiceImpl implements CityService {
+
+    @Autowired
+    private CityDao cityDao;
+
+    public List<City> findAllCity(){
+        return cityDao.findAllCity();
+    }
+
+    public City findCityById(Long id) {
+        return cityDao.findById(id);
+    }
+
+    @Override
+    public Long saveCity(City city) {
+        return cityDao.saveCity(city);
+    }
+
+    @Override
+    public Long updateCity(City city) {
+        return cityDao.updateCity(city);
+    }
+
+    @Override
+    public Long deleteCity(Long id) {
+        return cityDao.deleteCity(id);
+    }
+
+}