Elasticsearch 插入地理索引文档一直为空

今天在获取插入索引数据的时候，一直提示插入不成功，尝试了很多方法，原来是因为在插入的时候应该先 插入Latitude后插入longitude修改后的代码如下

public boolean insertIndexDoc(String indexname, String type,
            List<Require> list) throws ApplicationException, Exception {
        // TODO Auto-generated method stub
        String location=null;
        JestClient jestHttpClient = Connection.getClient();
        Bulk.Builder bulk = new Bulk.Builder().defaultIndex(indexname)
                .defaultType(type);
        for(Require req:list){
            String json = "{"+"\"location\":"+"\""+req.getLatitude()+","+req.getLongitude()+"\""+","
            +"\"id\":"+"\""+req.getId()+"\""+","+"\"user_id\":"+"\""+req.getUser_id()+"\""+","
            +"\"need_code\":"+"\""+req.getNeed_code()+"\""+","+"\"craete_date\":"+"\""+req.getCreate_date()+"\""+","
            +"\"text\":"+"\""+req.getText()+"\""+","+"}";
//           System.out.println(json);
           Index index = new Index.Builder(json).build();
            bulk.addAction(index);
        }        
        BulkResult  br = jestHttpClient.execute(bulk.build());
//        jestHttpClient.shutdownClient();
        return br.isSucceeded();
    }