mybatis框架-使用resultMap实现高级结果映射，association属性

需求：查询数特定角色下的所有用户列表

首先需要在在User类中引用Role类，因为引用了复杂的数据类型，所以要使用association属性进行映射，其实起主要作用的还是resultMap属性。

/**
* 根绝用户的角色id,获取该角色下的所有用户的信息
* @param roleid
* @return
*/
public List<User> getUserListByRoleID(@Param("userRole1") Integer roleid);

 

<resultMap type="User" >
SELECT a.*,b.id as b_id,b.rolename from smbms_user a,smbms_role b where a.userrole=b.id and b.id=#{userRole1}
</select>

  1 package cn.smbms.pojo;
  2 
  3 import java.util.Date;
  4 
  5 public class User {
  6     private Integer id; //id 
  7     private String userCode; //用户编码
  8     private String userName; //用户名称
  9     private String userPassword; //用户密码
 10     private Integer gender;  //性别
 11     private Date birthday;  //出生日期
 12     private String phone;   //电话
 13     private String address; //地址
 14     private Integer userRole;    //用户角色
 15     private Integer createdBy;   //创建者
 16     private Date creationDate; //创建时间
 17     private Integer modifyBy;     //更新者
 18     private Date modifyDate;   //更新时间
 19     private Role role;//用户角色
 20     
 21     
 22     public Role getRole() {
 23         return role;
 24     }
 25     public void setRole(Role role) {
 26         this.role = role;
 27     }
 28     public Integer getId() {
 29         return id;
 30     }
 31     public void setId(Integer id) {
 32         this.id = id;
 33     }
 34     public String getUserCode() {
 35         return userCode;
 36     }
 37     public void setUserCode(String userCode) {
 38         this.userCode = userCode;
 39     }
 40     public String getUserName() {
 41         return userName;
 42     }
 43     public void setUserName(String userName) {
 44         this.userName = userName;
 45     }
 46     public String getUserPassword() {
 47         return userPassword;
 48     }
 49     public void setUserPassword(String userPassword) {
 50         this.userPassword = userPassword;
 51     }
 52     public Integer getGender() {
 53         return gender;
 54     }
 55     public void setGender(Integer gender) {
 56         this.gender = gender;
 57     }
 58     public Date getBirthday() {
 59         return birthday;
 60     }
 61     public void setBirthday(Date birthday) {
 62         this.birthday = birthday;
 63     }
 64     public String getPhone() {
 65         return phone;
 66     }
 67     public void setPhone(String phone) {
 68         this.phone = phone;
 69     }
 70     public String getAddress() {
 71         return address;
 72     }
 73     public void setAddress(String address) {
 74         this.address = address;
 75     }
 76     public Integer getUserRole() {
 77         return userRole;
 78     }
 79     public void setUserRole(Integer userRole) {
 80         this.userRole = userRole;
 81     }
 82     public Integer getCreatedBy() {
 83         return createdBy;
 84     }
 85     public void setCreatedBy(Integer createdBy) {
 86         this.createdBy = createdBy;
 87     }
 88     public Date getCreationDate() {
 89         return creationDate;
 90     }
 91     public void setCreationDate(Date creationDate) {
 92         this.creationDate = creationDate;
 93     }
 94     public Integer getModifyBy() {
 95         return modifyBy;
 96     }
 97     public void setModifyBy(Integer modifyBy) {
 98         this.modifyBy = modifyBy;
 99     }
100     public Date getModifyDate() {
101         return modifyDate;
102     }
103     public void setModifyDate(Date modifyDate) {
104         this.modifyDate = modifyDate;
105     }
106 }

View Code