未处理代码片段

返回服务器参数

@RestController
public class EnvController {
	@RequestMapping("/env")
	public ReturnBean env() {
		Properties pros = System.getProperties();
		Map<String, String> map = new HashMap<String, String>();
		if (pros != null && pros.size() > 0) {
			Enumeration<Object> enums = pros.keys();
			while (enums.hasMoreElements()) {
				String key = (String) enums.nextElement();
				String value = pros.getProperty(key);
				map.put(key, value);
			}
		}
		map.put("单个汉子字节数", "我".getBytes().length + "");
		ReturnBean bean = ReturnBean.getSuccessInstance("");
		bean.setData(map);
		return bean;
	}
}

随机生成一个身份证号码

public class sfz {
	public static void main(String[] args) {
		System.out.println(randowAAc147());
	}

	public static String randowAAc147() {
		String id = "330726" + randowNum(1920, 2018, 4) + randowNum(1, 12, 2) + randowNum(1, 28, 2)
				+ randowNum(0, 999, 3);
		return getAAc147(id);
	}

	/**
	 * 生成一个min-max的随机数，位数为ws位
	 */
	public static String randowNum(int min, int max, int ws) {
		Integer v = new Random().nextInt(max + 1 - min) + min;
		String result = v + "";
		if (result.length() < ws) {
			for (int i = 0; i < ws - result.length(); i++) {
				result = "0" + result;
			}
		}
		return result;
	}

	public static String getAAc147(String aac147) {
		char pszSrc[] = aac147.toCharArray();
		int iS = 0;
		int iW[] = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 };
		char szVerCode[] = new char[] { '1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2' };
		int i;
		for (i = 0; i < 17; i++) {
			iS += (int) (pszSrc[i] - '0') * iW[i];
		}
		int iY = iS % 11;
		String c = String.valueOf(szVerCode[iY]);
		return aac147 + c;
	}
}