面試準備--帶刪除

題目

1.使用POST方式發送請求到https://img.guangying.net/test/
2.需要帶兩個參數
name 姓名，需要使用utf-8格式urlencode處理
key 簽名，name的值做md5處理
3.返回結果爲有經過base64處理的utf-8字符

Maven依賴

  <dependencies>
   <dependency>
     <groupId>org.slf4j</groupId>
       <artifactId>slf4j-nop</artifactId>
       <version>1.7.2</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
	<dependency>
	    <groupId>org.slf4j</groupId>
	    <artifactId>slf4j-api</artifactId>
	    <version>1.7.25</version>
	</dependency>
	<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 -->
	<dependency>
	    <groupId>com.alibaba</groupId>
	    <artifactId>fastjson</artifactId>
	    <version>1.2.51</version>
	</dependency>
    <!--  httpcomponents  -->
  	<dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>
       <version>4.5.2</version>
   </dependency>

函數入口

package com.usc.huangjiapeng;

import java.net.URLEncoder;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class T {
	public static void main(String[] args) {
		try {
			String name = IdUtil.genMd5("黃家鵬");
			String key = URLEncoder.encode("聯繫方式15115451867", "utf-8");
			String msg = "{'name':" + name + ",'key':" + key + "}";
			String string = "https://img.guangying.net/test/";
			String sendHttpPost = T
					.sendHttpPost("https://img.guangying.net/test/", msg);
			System.out.println("3.返回結果爲有經過base64處理的utf-8字符:" + sendHttpPost);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public static String sendHttpPost(String url, String param)
			throws Exception {
		CloseableHttpClient httpClient = HttpClients.createDefault();
		HttpPost httpPost = new HttpPost(url);
		httpPost.addHeader("Content-Type", "application/json");
		httpPost.setEntity(new StringEntity(param));
		CloseableHttpResponse response = httpClient.execute(httpPost);
		System.out.println("訪問狀態" + response.getStatusLine().getStatusCode());
		HttpEntity entity = response.getEntity();
		String responseContent = EntityUtils.toString(entity, "UTF-8");
		responseContent = Base64Util.encodeData(responseContent);
		response.close();
		httpClient.close();
		return responseContent;
	}
}

IdUtil.java MD5加密工具類

package com.usc.huangjiapeng;

import java.security.MessageDigest;
import java.util.UUID;

import sun.misc.BASE64Encoder;

public class IdUtil {
	/*
	 * UUID
	 */
	public static String genUUId() {
		return UUID.randomUUID().toString();
	}

	/*
	 * Md5加密
	 */
	public static String genMd5(String str) {
		try {
			// 確定計算方法
			MessageDigest md5 = MessageDigest.getInstance("MD5");
			BASE64Encoder base64en = new BASE64Encoder();
			// 加密後的字符串
			String newstr = base64en.encode(md5.digest(str.getBytes("utf-8")));
			return newstr;
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}
}

Base64Util.java Base64加密工具類

package com.usc.huangjiapeng;

import java.io.UnsupportedEncodingException;

import org.apache.commons.codec.binary.Base64;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/***
 * @class Base64Util
 * @Description: TODO Base64加密 解碼工具
 * @author usc hangjiapeng
 * @Email 1625545295qq.com
 * @date 2019年2月28日 下午11:07:12
 *
 */
public class Base64Util {

	private static final Logger LOG = LoggerFactory.getLogger(Base64Util.class);
	// 字符串編碼
	private static final String UTF_8 = "UTF-8";

	/**
	 * 加密字符串
	 * 
	 * @param inputData
	 * @return
	 */
	public static String decodeData(String inputData) {
		try {
			if (null == inputData) {
				return null;
			}
			return new String(Base64.decodeBase64(inputData.getBytes(UTF_8)),
					UTF_8);
		} catch (UnsupportedEncodingException e) {
			LOG.error(inputData, e);
		}
		return null;
	}

	/**
	 * 解密加密後的字符串
	 * 
	 * @param inputData
	 * @return
	 */
	public static String encodeData(String inputData) {
		try {
			if (null == inputData) {
				return null;
			}
			return new String(Base64.encodeBase64(inputData.getBytes(UTF_8)),
					UTF_8);
		} catch (UnsupportedEncodingException e) {
			LOG.error(inputData, e);
		}
		return null;
	}

	public static void main(String[] args) {
		System.out.println(Base64Util.encodeData("黃家鵬"));
		String enStr = Base64Util.encodeData("黃家鵬");
		System.out.println(Base64Util.decodeData(enStr));
	}
}