jdbc等使用

JDBC、JdbcTemplate、SpringData对比学习
https://blog.csdn.net/Changui_/article/details/78484935

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

配置文件存在空格，删掉即可

要想前后台使用中文在mysql，连接一定如下

mysql.url=jdbc:mysql://ip:3306/test?characterEncoding=UTF-8&autoReconnect=true&rewriteBatchedStatements=true&allowMultiQueries=true

jdbcTemplate和namedParameterJdbcTemplate
https://segmentfault.com/a/1190000010907688
https://www.cnblogs.com/mythdoraemon/p/7613062.html

@DataSourceAnnotation(name = DataSourceType.dataSource_mysql2)
	@Transactional(readOnly = true, propagation = Propagation.REQUIRED, rollbackFor = Exception.class)
	@Override
	public List<Temp> findByNameAndCamerId(String name, long start, long end, List<String> canmerIds) {
		// TODO Auto-generated method stub
		String sql = "select p.pic_path,p.name,p.timestamp,p.gender,p.age,c.longitude,c.latitude from face_info "
				+ "as p left join camera_info as c on p.camera_id=c.camera_id where p.name=" + name
				+ " and p.timestamp>=" + start + " and p.timestamp<=" + end +" and c.camera_id in (:canmerIds)" +" ORDER BY p.timestamp ASC";
		System.out.println("canmerIds:"+canmerIds);
		Map<String, Object> paramMap = new HashMap<>();
	    paramMap.put("canmerIds", canmerIds);
	    
	    List<Map<String, Object>> mapList = namedParameterJdbcTemplate.queryForList(sql,paramMap);
	    List<Temp> list = new ArrayList<Temp>();
	    for(Map<String, Object> map : mapList){
	    	Temp t=new Temp();
	        for(String key : map.keySet()){
	            System.out.println("key:"+key+",value:"+map.get(key));
	            t.setPic_path((String)map.get("pic_path"));
	            t.setTimestamp((Long.valueOf((long)map.get("timestamp"))));
	            t.setName((String)map.get("name"));
	            t.setLongitude(BigDecimal.valueOf(Double.valueOf((String.valueOf(map.get("longitude"))))));
	            t.setLatitude(BigDecimal.valueOf(Double.valueOf((String.valueOf(map.get("latitude"))))));
	            t.setAge((int)map.get("age"));
	            t.setGender((String)map.get("gender"));
	        }
	        list.add(t);
	    }



	    System.out.println("return list:"+list.size()+","+list.toString());
		return list;
	}