解析txt文件，并以字段名为key，解析后数据为value，动态参数入库

工具方法

default  ArrayList<HashMap<String,String>> txt2MapList(String[] fieldNames,File file){ArrayList<HashMap<String,String>> entityMaps = new ArrayList<>();try{BufferedReader br = new BufferedReader(new FileReader(file));//构造一个BufferedReader类来读取文件String s = null;while((s = br.readLine())!=null){//使用readLine方法，一次读一行String[] sz = s.split("\\|");HashMap<String, String> tmpMap = new HashMap<>();for (int i=0;i<sz.length;i++) {tmpMap.put(fieldNames[i], sz[i]);}entityMaps.add(tmpMap);}br.close();}catch(Exception e){e.printStackTrace();}return entityMaps;
}

        ArrayList<HashMap<String, String>> inComeEntityMaps = handler.parseTxt(file);

根据上述方法解析出 inComeEntityMaps对象

void insert(@Param("lists") List<HashMap<String,String>> InComelist);

   <!-- 保存新增数据 --><insert id="insert"  parameterType="java.util.List"><foreach collection="lists" item="maps" index="indexName" separator=";">insert into table<foreach item="key" index="keyIndex" collection="maps.keySet()" separator="," open="(" close=")">${key}</foreach>values<foreach item="value" index="valueIndex" collection="maps.entrySet()" separator="," open="(" close=")"><choose><when test="valueIndex == 'month' or valueIndex == 'day'">CAST(#{value} AS SMALLINT)</when><otherwise>#{value}</otherwise></choose></foreach></foreach></insert>