打印实体类的属性和值

[code]public class A{
private String pa;
public void setPa(String pa){
this.pa = pa;
}

public void getPa(){
return pa;
}
public String toString(){
String s = "\n----------------------------------------\n";
Class cls = this.getClass();
Field[] field = cls.getDeclaredFields();
System.out.println();
for(Field f : field){
try {
System.out.println(f.getName()+" = "+f.get(this));
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
return s;
}

}[/code]