无法从类型Officer

Question

我正在尝试插入以下代码中的值：

public int create(Officer officer) {
     String sql = "insert into officer values(" + officer.getOfficer_id() + ", " + officer.getCollege_id() + ", " + Officer.getUnit_id() + ", " + officer.getRole_id() + ")";
     return template.update(sql);
}

Answer 1

这应该是编译错误。 getUnit_id不是静态方法，因此您需要使用Officer实例调用它。

public int create(Officer officer) { String sql = "insert into officer values(" + officer.getOfficer_id() + ", " + officer.getCollege_id() + ", " + officer.getUnit_id() + ", " + officer.getRole_id() + ")"; return template.update(sql); }