public class TestDTO {

    // 构造函数初始化 ，反射可以修改值
    private final String name;

    // 初始化 ，反射无法修改值
    private final String name2 = "name2_tiger";

    public TestDTO(final String name){
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public String getName2() {
        return name2;
    }
}



		TestDTO dto = new TestDTO("cat");
		System.out.println(dto.getName());

		Field f = dto.getClass().getDeclaredField("name");
		f.setAccessible(true);
		f.set(dto,"tiger");
		System.out.println(dto.getName());


		System.out.println(dto.getName2());
		Field f2 = dto.getClass().getDeclaredField("name2");
		f2.setAccessible(true);
		f2.set(dto,"name2_new");
		System.out.println(dto.getName2());



cat
tiger
name2_tiger
name2_tiger