在mapper的xml文件中配置 useGeneratedKeys
以及 keyProperty 返回Id即可
<insert id="insertObject" useGeneratedKeys="true" keyProperty="id" parameterType=".xx.yy.zz.YourClass" useGeneratedKeys="true" keyProperty=“yourId">...</insert>2、XyzMapper.java
public int doSomething(Map<String, Object> parameters);orpublic int doSomething(YourClass c);3、要在map或c中有一个字段名为yourId，Mybatis会自动把主键值赋给这个字段。
Map<String, Object> parameters = new HashMap<String, Object>();parameters.put(“yourId”, 1234);...mapper.doSomething(parameters);System.out.println(“id of the field that is primary key” + parameters.get(“yourId"));或
YourClass c = new YourClass();...mapper.doSomething(c);System.out.println(“id of the field that is primary key” + c.yourId);好了，到此结束，希望对大家有所帮助！
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