反射，獲取類的屬性以及get方法

vo實體類：

public class Result {

    /***
     * 返回結果code
     * ok:10000
     * error:20000
     */
    private String code;

    /***
     * 返回描述
     */
    private String msg;


    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    @Override
    public String toString() {
        return "Result{" +
                "code='" + code + '\'' +
                ", msg='" + msg + '\'' +
                '}';
    }
}

測試類：

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

/**
 * @author create by lxn
 * @date 2018/4/19 11:22
 **/
public class Test {

    public static void main(String[] args) throws Exception {

        Result result = new Result();
        result.setCode("10000");
        result.setMsg("成功");
        System.out.println("屬性-----");
        System.out.println("方法-----");
        Method[] declaredMethods = Result.class.getDeclaredMethods();
        for (int i = 0; i < declaredMethods.length; i++) {
            String name = declaredMethods[i].getName();
            System.out.println(name);
            String mod = Modifier.toString(declaredMethods[i].getModifiers()); // 取得訪問權限
            String metName = declaredMethods[i].getName(); // 取得方法名稱
        }
        System.out.println("類名-----");
        String filename = Result.class.getSimpleName().toLowerCase();
        System.out.println(filename);
        StringBuffer sb = new StringBuffer();
        sb.append("<date>");
        sb.append("<"+filename+">");
        Field[] fields = Result.class.getDeclaredFields();
        for (int i = 0; i < fields.length; i++) {
            String name = fields[i].getName();
            sb.append("<"+name+">");
            Method m = Result.class.getMethod("get" +upperCase1th(name));
            String value = (String) m.invoke(result);
            sb.append(value);
            sb.append("</"+name+">");
            System.out.println(name);
        }
        sb.append("</"+filename+">");
        sb.append("</date>");
        System.out.println("拼裝的xml："+sb.toString());
    }

    public static String upperCase1th(String str){
        return str.substring(0, 1).toUpperCase() + str.substring(1);
    }
}

 輸出結果：

拼裝的xml：<date><result><code>10000</code><msg>成功</msg></result></date>