Cause: org.apache.ibatis.executor.ExecutorException错误解决方法：

今天在进行Mybatis配置的时候出现了如下错误：

### Error querying database.  Cause: org.apache.ibatis.executor.ExecutorException: No constructor found in com.imooc.mybatis.bean.Person matching [java.lang.Integer, java.lang.String, java.lang.String, java.lang.String, java.lang.Integer]

该错误是说没找到对应的构造器：

public class Person {

    private Integer id;
    private String username;
    private String email;
    private String gender;
    private Integer deptId;

    public Person(String username, String gender) {
        this.username = username;
        this.gender = gender;
    }

    @Override
    public String toString() {
        return "Person{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", email='" + email + '\'' +
                ", gender='" + gender + '\'' +
                ", deptId=" + deptId +
                '}';
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public Integer getDeptId() {
        return deptId;
    }

    public void setDeptId(Integer deptId) {
        this.

这是我的实体类，在实体类中加上无参构造器就可以了：

   public Person() {
   }