易联云K4打印

易联云官网

Print工具类

package com.example.demo.utils;import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;public class PrinterUtil {//应用IDprivate static String client_id="";//访问令牌private static String access_token="";//密钥private static String client_secret="";public static String print(String machine_code,JSONArray goods,String origin_id) {String content = "";for(Object o:goods) {JSONObject json = (JSONObject) JSONObject.toJSON(o);String str = "<FH2><FB><center>卖酒廊</center></FB></FH2><FH><FB><center>客服热线：0311-66666666</center></FB></FH>\r"+"<FH>商品名称 规格 数量</FH>\r"+"--------------------------------\r<FH>"+json.get("name")+" "+json.get("extend")+" "+json.get("count")+"\r"+"</FH>--------------------------------\r<FH>"+"应付款：￥"+json.get("price")+"\r"+"线上支付：￥"+json.get("payAmount")+"\r\r"+json.get("orderId")+" \r"+json.get("time")+"</FH>\r";content += str;}String url="https://open-api.10ss.net/print/index";Map<String, String> headMap = new HashMap<String, String>();headMap.put("Content-Type", "application/x-www-form-urlencoded");Map<String, String> ParamMap = new HashMap<String, String>();ParamMap.put("client_id", client_id);ParamMap.put("access_token", access_token);ParamMap.put("machine_code", machine_code);ParamMap.put("content", content);ParamMap.put("origin_id", origin_id);int time = getTimestamp();String sign = getSign(client_id, ""+time, client_secret);ParamMap.put("sign", sign);String uuid = getUUID();ParamMap.put("id", uuid);ParamMap.put("timestamp", ""+time);return HttpConnectUtil.httpPostHead(url, ParamMap, headMap);}public static String getSign(String client_id,String timestamp,String client_secret) {String str = client_id+timestamp+client_secret;return MD5Util.getMD5String(str).toLowerCase();}public static int getTimestamp() {String timestamp = ""+new Date().getTime();String time = timestamp.substring(0,timestamp.length()-3);return Integer.parseInt(time);}public static String getUUID() {return ""+UUID.randomUUID();}}

Http工具类

package com.example.demo.utils;import java.io.IOException;
import java.io.InputStream;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;public class HttpConnectUtil {/*** post方式* * @param url* @param paramMap* @return*/public static String httpPost(String url, Map<String, String> paramsMap) {String responseContent = null;CloseableHttpClient httpclient = HttpClients.createDefault();try {HttpPost httpPost = new HttpPost(url);setPostParams(httpPost, paramsMap);CloseableHttpResponse response = httpclient.execute(httpPost);try {System.out.println(response.getStatusLine());HttpEntity entity = response.getEntity();responseContent = getRespString(entity);EntityUtils.consume(entity);} finally {response.close();}} catch (Exception e) {responseContent = MessageFormat.format("http-error:{0}",e.getMessage());System.out.println("httpPost请求失败" + e.getMessage());} finally {try {httpclient.close();} catch (IOException e) {e.printStackTrace();}}return responseContent;}public static String httpPostHead(String url,Map<String, String> paramsMap, Map<String, String> headMap) {String responseContent = null;CloseableHttpClient httpclient = HttpClients.createDefault();try {HttpPost httpPost = new HttpPost(url);setPostHead(httpPost, headMap);setPostParams(httpPost, paramsMap);CloseableHttpResponse response = httpclient.execute(httpPost);try {System.out.println(response.getStatusLine());HttpEntity entity = response.getEntity();responseContent = getRespString(entity);EntityUtils.consume(entity);} finally {response.close();}} catch (Exception e) {responseContent = MessageFormat.format("http-error:{0}",e.getMessage());System.out.println("httpPost请求失败" + e.getMessage());} finally {try {httpclient.close();} catch (IOException e) {e.printStackTrace();}}return responseContent;}public static String httpGet(String url, Map<String, String> paramsMap,Map<String, String> headMap) {String responseContent = null;CloseableHttpClient httpclient = HttpClients.createDefault();try {String tempUrl = url;tempUrl = tempUrl + "?" + getParam(paramsMap);HttpGet httpGet = new HttpGet(tempUrl);CloseableHttpResponse response = httpclient.execute(httpGet);try {System.out.println(response.getStatusLine());HttpEntity entity = response.getEntity();responseContent = getRespString(entity);EntityUtils.consume(entity);} finally {response.close();}} catch (Exception e) {responseContent = MessageFormat.format("http-error:{0}",e.getMessage());System.out.println("httpPost请求失败" + e.getMessage());} finally {try {httpclient.close();} catch (IOException e) {e.printStackTrace();}}return responseContent;}public static String getParam(Map<String, String> paramMap) {StringBuilder str = new StringBuilder();for (Entry<String, String> entry : paramMap.entrySet()) {String key = entry.getKey();String value = entry.getValue();str.append(key).append("=").append(value).append("&");}String paramStr = str.toString();if (paramStr.length() > 1) {paramStr = paramStr.substring(0, paramStr.length() - 1);}return paramStr;}/*** 设置POST的参数* * @param httpPost* @param paramsMap* @throws Exception*/private static void setPostParams(HttpPost httpPost,Map<String, String> paramsMap) throws Exception {if (paramsMap != null && paramsMap.size() > 0) {List<NameValuePair> nvps = new ArrayList<NameValuePair>();Set<String> keySet = paramsMap.keySet();for (String key : keySet) {nvps.add(new BasicNameValuePair(key, paramsMap.get(key)));}httpPost.setEntity(new UrlEncodedFormEntity(nvps, "UTF-8"));}}/*** 设置http的HEAD* * @param httpPost* @param headMap*/private static void setPostHead(HttpPost httpPost,Map<String, String> headMap) {if (headMap != null && headMap.size() > 0) {Set<String> keySet = headMap.keySet();for (String key : keySet) {httpPost.addHeader(key, headMap.get(key));}}}/*** 将返回结果转化为String* * @param entity* @return* @throws Exception*/private static String getRespString(HttpEntity entity) throws Exception {if (entity == null) {return null;}InputStream is = entity.getContent();StringBuffer strBuf = new StringBuffer();byte[] buffer = new byte[4096];int r = 0;while ((r = is.read(buffer)) > 0) {strBuf.append(new String(buffer, 0, r, "UTF-8"));}return strBuf.toString();}}

测试

JSONArray jsona = new JSONArray();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
ShopOrderDetailDo or = shopOrderDetailMapper.goodsOrderDetailByNo("ZYCART741590977305802");
JSONObject json = new JSONObject();
json.put("name", or.getGoods_name());
json.put("extend", or.getGoods_extend_color());
json.put("count",or.getCount());
json.put("price", or.getPrice()*0.01);
json.put("payAmount", or.getPayAmount()*0.01);
json.put("orderId", "ZYCART741590977305802");
json.put("time",sdf.format(or.getUpdateTime()));
jsona.add(json);
return PrinterUtil.print("打印机终端号", jsona, "ZYCART741590977305802");

打印效果