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创建表t_emp 定义实体类 package org.example.entity; public class Emp { private Integer empId; private String empName; private Integer age; private String gende 阅读全文
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处理字段名和属性名不一致的情况： mybatis-config.xml配置 <settings> <setting name="mapUnderscoreToCamelCase" value="true"/> </settings> 阅读全文
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实体类 package org.example.entity; public class User { private Integer id; private String name; private int age; private String gender; private String em 阅读全文
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mapper接口 public void deleteUser(@Param("ids") String ids); mapper.xml <delete id="deleteUser"> delete from t_user where id in (${ids}) </delete> 测试代码 阅读全文