java中的sql字符串中的MYSQL语法错误

Question

这是一个在 mysql 命令行中完美运行的代码，但是当我尝试在 java 中执行查询时，它给出了一个语法错误，不确定是什么问题。

我已经加了空格，修改了代码，还是没找到解决办法。

String path = selectedfile.getAbsolutePath();
String sql = "LOAD DATA LOCAL INFILE '" + path + "' REPLACE INTO TABLE 
temp FIELDS TERMINATED BY ',' ENCLOSED BY '" + '"' + " LINES TERMINATED BY 
'\r\n' IGNORE 1 LINES \n" + " 
(fname,lname,email,idemployee,statu,@hiredate,idsupervisor,
jobtitle,description,country,site,clockid) "+ 
"SET hiredate = STR_TO_DATE(@hiredate, '%m/%d/%Y');";

这是java中的输出

您的 SQL 语法有错误；检查与您的 MySQL 服务器版本相对应的手册，以获取在 '' IGNORE 1 LINES 附近使用的正确语法 (fname,lname,email,idemployee,statu,@hiredate,idsupervisor,job' 在第 2 行

Answer 1

大家好，我设法让代码运行，这里的代码可以作为未来案例的示例：

String sql = "LOAD DATA LOCAL INFILE '" + path + "' REPLACE INTO TABLE temp
\n FIELDS TERMINATED BY ',' \n ENCLOSED BY '" + '"' + "' \n LINES TERMINATED 
BY '\\r\\n' \n 
IGNORE 1 LINES \n" +
" (fname,lname,email,idemployee,statu,@hiredate,idsupervisor,
jobtitle,description,country,site,clockid) \n"+
"SET hiredate = STR_TO_DATE(@hiredate, '%m/%d/%Y');";

Answer 2

您需要对查询中的反斜杠进行转义，以便将它们从 Java 传递到 MySQL。

您还缺少ENCLOSED BY 设置周围的'。您可以转义双引号，而不是在那里连接字符串。

String sql = "LOAD DATA LOCAL INFILE '" + path + "' REPLACE INTO TABLE 
temp FIELDS TERMINATED BY ',' ENCLOSED BY '\"' LINES TERMINATED BY 
'\\r\\n' IGNORE 1 LINES \n" + " 
(fname,lname,email,idemployee,statu,@hiredate,idsupervisor,
jobtitle,description,country,site,clockid) "+ 
"SET hiredate = STR_TO_DATE(@hiredate, '%m/%d/%Y');";