jooq sql 生成器输出给出“?”在 WHERE 子句中的 eq()

jooq sql builder output give "?" at eq() in WHERE clause

我复制示例代码here

整个代码块如下所示

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import org.jooq.DSLContext;
import org.jooq.SQLDialect;
import static org.jooq.impl.DSL.*;


public static String sampleSql() {
    DSLContext create = DSL.using(SQLDialect.MYSQL);
    String sql = create.select(field("BOOK.TITLE"), field("AUTHOR.FIRST_NAME"), field("AUTHOR.LAST_NAME"))
            .from(table("BOOK"))
            .join(table("AUTHOR"))
            .on(field("BOOK.AUTHOR_ID").eq(field("AUTHOR.ID")))
            .where(field("BOOK.PUBLISHED_IN").eq(1948))
            .getSQL();
    return sql;
}

sampleSql()的输出是

select BOOK.TITLE, AUTHOR.FIRST_NAME, AUTHOR.LAST_NAME from BOOK join AUTHOR on BOOK.AUTHOR_ID = AUTHOR.ID where BOOK.PUBLISHED_IN = ?

但是为什么问号“?”,问号应该是1948。我漏掉了什么?

getSQL() returns 带有 ?作为参数占位符。

如果要内联必须调用的参数:

getSQL(ParamType.INLINED);

请在此处找到 API 文档:https://www.jooq.org/javadoc/latest/org.jooq/org/jooq/Query.html