How SpringJDBC operates data in batches

This time I bring to you, what are the precautions, the following is a practical case, let's take a look.

Parameters:

List<Map> paramMaps = new ArrayList<Map>();
for(int i = 0; i < 100; i++ ){
    Map paramMap = new HashMap();
    paramMap.put("param1", "param1");
    paramMap.put("param2", "param2");
    paramMap.put("param3", "param3");
    paramMap.put("param4", "param4");
    paramMap.put("param5", "param5");
    paramMaps.add(paramMap);
}
Map[] paramMap = paramMaps.toArray(new HashMap[paramMaps.size()]);

Method:

public void saveSpringJDBC(Map[] paramMap) throws Exception {
    NamedParameterJdbcTemplate namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(jdbcTemplate);
    StringBuffer sql = new StringBuffer();
    sql.append("Insert into 表名 ");
    sql.append("  (param1, param2, param3, param4) ");
    sql.append(" Values ");
    sql.append("  (:param1, :param2, :param3, :param4 ");
    namedParameterJdbcTemplate.batchUpdate(sql.toString(), paramMap);
}
public void ticketIssueCusInfo(Map[] paramMap) throws Exception{
    NamedParameterJdbcTemplate namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(jdbcTemplate);
    StringBuffer sql = new StringBuffer();
    sql.append(" UPDATE 表名 ");
    sql.append(" SET param1= :param1, param2 = :param2 ");
    sql.append(" WHERE param3 = :param3");
    namedParameterJdbcTemplate.batchUpdate(sql.toString(), paramMap);
}

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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