Gson序列化后MySql给出语法错误-Java 学习之路

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我似乎对Gson序列化有问题 . 在序列化后，当我尝试将其保存到数据库中时，我收到来自mysql的语法错误 .

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''{"nexus_loc":{"world":"world","x":300.0,"y":63.0,"z":428.0,"pitch":0.0,"yaw":0.' at line 1

这是保存功能的代码 .

PreparedStatement stmt = conn.prepareStatement("INSERT INTO %table VALUES (?,?) ON DUPLICATE KEY UPDATE `data` = VALUES(?)".replace("%table",tablename));
            stmt.setString(1,key);
            stmt.setString(2,serialize(value,type));
            stmt.setString(3,serialize(value,type));
            stmt.executeUpdate();
            stmt.close();

这是我们创建表的字符串

String tablequery = "CREATE TABLE IF NOT EXISTS %table (`id` CHAR(36) PRIMARY KEY, `data` TEXT);".replace("%table",tablename);

1 回答

UPDATE 部分不需要 VALUES() .

而不是

"INSERT INTO %table VALUES (?,?) ON DUPLICATE KEY UPDATE `data` = VALUES(?)"`

尝试

"INSERT INTO %table VALUES (?,?) ON DUPLICATE KEY UPDATE `data` = ?"

回复于 2024-04-30T17:54:19+08:00

Gson序列化后MySql给出语法错误

1 回答

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