There is no getter for property named ‘username‘ in ‘class com.kuang.entity.User‘“
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There is no getter for property named ‘username‘ in ‘class com.kuang.entity.User‘“
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mapper.xml文件如下:
<mapper namespace="com.kuang.dao.UserDAO"><select id="login" parameterType="User" resultType="User">select * from user where name=#{username} and password=#{password}</select> </mapper>User實體如下:
@Data @Accessors(chain = true) public class User {private String id;private String name;private String password; }實體的屬性是name,而mapper的xml中是#{username},實體中沒有username屬性所以報錯
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