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MyStudent.java
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81 lines (59 loc) · 1.37 KB
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package reflection;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@TableStudent("MyStudent")
public class MyStudent {
@FiledStudent(columnName = "id", type = "String", length = 10)
private String id;
@FiledStudent(columnName = "name", type = "String", length = 100)
private String name;
@FiledStudent(columnName = "age", type = "int", length = 10)
private int age;
public MyStudent() {
}
public MyStudent(String id, String name, int age) {
this.id = id;
this.name = name;
this.age = age;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "MyStudent{" +
"id='" + id + '\'' +
", name='" + name + '\'' +
", age=" + age +
'}';
}
}
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@interface TableStudent {
String value();
}
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
@interface FiledStudent {
String columnName();
String type();
int length();
}