返回Map,Mybatis配置如下 ：

<select id="getCountyHashMap" resultType="java.util.HashMap">    select name,id from    tsql_test_region where    id=#{id}  </select>

ServiceImpl如下 ：

public Map<String, Long> getCountyHashMap(long id) {    Map<String, Object> regionMap = regionInfoMapper.getCountyHashMap(id);    Map<String, Long> resultMap = new HashMap<String, Long>();    String region = null;    Long vid = null;    for (Map.Entry<String, Object> entry : regionMap.entrySet()) {      if ("NAME".equals(entry.getKey())) {        region = (String) entry.getValue();      } else if ("ID".equals(entry.getKey())) {        vid = ((java.math.BigDecimal) entry.getValue()).longValue();      }    }    resultMap.put(region, vid);    return resultMap;  }

Controller如下 :

@RequestMapping(value = http://www.mamicode.com/"/region3", method = RequestMethod.GET)  public @ResponseBody  Map<String, Long> getCountyMap(@RequestParam(required = true) int regionId) {    return regionInfoService.getCountyHashMap(regionId);  }

结果为 ：

     返回List<Map>类似 :

Mybatis配置 :

<select id="getRegionHashMap" resultType="java.util.HashMap">    select name,id from    tsql_test_region order by id  </select>

ServiceImpl如下 :

public Map<String, Long> getRegionHashMap() {    List<Map<String, Object>> regionMap = regionInfoMapper        .getRegionHashMap();    Map<String, Long> resultMap = new HashMap<String, Long>();    for (Map<String, Object> map : regionMap) {      String region = null;      Long id = null;      for (Map.Entry<String, Object> entry : map.entrySet()) {        if ("NAME".equals(entry.getKey())) {          region = (String) entry.getValue();        } else if ("ID".equals(entry.getKey())) {          id = ((java.math.BigDecimal) entry.getValue()).longValue();        }      }      resultMap.put(region, id);    }    return resultMap;  }

Controller如下 :

@RequestMapping(value = http://www.mamicode.com/"/region2", method = RequestMethod.GET)  public @ResponseBody  Map<String, Long> getRegionMap() {    return regionInfoService.getRegionHashMap();  }

结果为 ：

用Mybatis返回Map,List<Map>