分为两个部分：生成HTML和返回HTML
生成HTML：
最终想要的时显示地图，不可避免的使用高德地图的API。
【地图API】地址录入时如何获得准确的经纬度？淘宝收货地址详解
改变几个参数即可达到目的，很简单不讲了。
重点说说如何生成查询结果对应的HTML：
将HTML中的内容保存为String，在String格式的基础上替换关键参数，即可批量生产。
在将HTML保存为String时，因为HTML内容都是带换行缩进的，还带有许多双引号，所以直接粘贴实不可取的。
我用的方法是将内容先保存在文本中，再通过IO流读取，并且一定要做到：
删除所有换行符
将双引号替换为单引号
将所有注释都去掉
否则不满足前两条，String格式会报错；
不满足最后一条，输出的时候因为没有换行符，“//”又是行注释，会导致把第一个“//”后的所有内容都认为是注释而无法执行。
代码：getHtml.java
1 package util;
2
3 import java.util.List;
4 import java.util.regex.Pattern;
5
6 public class getHtml {
7 public getHtml(){}
8 public String creatHtml(List<String> list){
9 String html = null;
10 String add = "";
11 int j = list.size();
12 for(int i = 1; i < j ; i++ ){
13 if(i != j - 1){
14 add = add + list.get(i) + "--->";
15 }else{
16 add = add + list.get(i);}
17 }
18 String address = list.get(j-1);
19 html = "<html> <head> <base href=‘<%=basePath%>‘> <meta http-equiv=‘pragma‘ content=‘no-cache‘> <meta http-equiv=‘cache-control‘ content=‘no-cache‘> <meta http-equiv=‘expires‘ content=‘0‘> <meta http-equiv=‘keywords‘ content=‘keyword1,keyword2,keyword3‘> <meta http-equiv=‘description‘ content=‘This is my page‘> <script type=‘text/javascript‘ src=‘http://webapi.amap.com/maps?v=1.3&key=0250860ccb5953fa5d655e8acf40ebb7&plugin=AMap.Geocoder‘></script> <script type=‘text/javascript‘ src=‘http://cache.amap.com/lbs/static/addToolbar.js‘></script> <style> #addressBox{height:20px;width:600px;} #mapBox{height:400px;width:600px} #pointBox{height:20px;width:600px;} </style> <!-- <link rel=‘stylesheet‘ type=‘text/css‘ href=‘styles.css‘> --> </head> <body onload=‘geocoder();‘> "
20 + " <p>物流轨迹：</p> "
21 + "<p>"+add+"</p>"
22 + "<div> <p>当前所在位置</p> </div> <div id=‘pointBox‘> </div> <div id=‘mapBox‘></div> <div> 如果不够准确，可以拖动地图改变经纬度 </div> "
23 + "<script type=‘text/javascript‘> var address =‘"+address
24 + "‘;var $pointBox = document.getElementById(‘pointBox‘); var map = new AMap.Map(‘mapBox‘, { resizeEnable: true, center: [116.397428, 39.90923], zoom:14 }); function addMarker(point) { var marker = new AMap.Marker({ map: map, position: [ point.getLng(), point.getLat()] }); } function addCenterPoint(){ map.clearMap(); var centerPoint = map.getCenter(); addMarker(centerPoint); $pointBox.innerHTML = ‘当前经纬度为：‘ + centerPoint.getLng() + ‘,‘ + centerPoint.getLat(); } addCenterPoint(); function geocoder() { map.clearMap(); var myGeo = new AMap.Geocoder(); myGeo.getLocation(address, function(status, result) { if (status === ‘complete‘ && result.info === ‘OK‘) { geocoder_CallBack(result); }else{ $pointBox.innerHTML = ‘查无此地址‘; } }); } function geocoder_CallBack(data) { var resultStr = ‘‘; var geocode = data.geocodes; addMarker(geocode[0].location); resultStr += ‘当前坐标</b>：‘ + geocode[0].location.getLng() + ‘, ‘ + geocode[0].location.getLat(); map.setFitView(); $pointBox.innerHTML = resultStr; } map.on(‘moveend‘, function() { addCenterPoint(); }); </script> </body></html>";
25 String str = html.replaceAll( "\‘", "\"");
26 return str;
27 }
28 }
大家可以看到String html定义哪一行是如何处理更改参数和处理格式的。可以和最开始链接中的代码进行对比。
返回HTML：
不说了，直接代码:getMap.java
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
String shipperCode = request.getParameter("ShipperCode");
String logisticCode = request.getParameter("LogisticCode");
System.out.println(shipperCode+","+logisticCode);
kdniaoTrackQueryAPI kdnAPI = new kdniaoTrackQueryAPI();
List<String> result = kdnAPI.Return(shipperCode,logisticCode);
String name = "";
if(result.get(0).equals("0")){
name = "<html><head><title>t.html</title></head><body>"+result.get(1)+"<br></body></html>";
}else if(result.get(0).equals("1")){
getHtml gH = new getHtml();
name = gH.creatHtml(result);
}else{
name = "<html><head><title>t.html</title></head><body>"+result.get(1)+"<br></body></html>";
}
//返回文本数据
response.setContentType("text/plain;charset=UTF-8");
ServletOutputStream outputStream = response.getOutputStream();
outputStream.write(name.getBytes("UTF-8"));
outputStream.flush();
outputStream.close();
}
随便查查就有返回的方法
调用方法实例：
如何调用我的API
1 package test;
2 import java.io.BufferedReader;
3 import java.io.File;
4 import java.io.FileWriter;
5 import java.io.IOException;
6 import java.io.InputStreamReader;
7 import java.io.OutputStreamWriter;
8 import java.io.PrintWriter;
9 import java.net.HttpURLConnection;
10 import java.net.URL;
11 import java.net.URLEncoder;
12 import java.util.Map;
13
14 public class test1 {
15 public static void main(String args[]){
16 //请求url
17 String URL="安全起见，不可说，等我发布前端地址";
18 String ShipperCode = ""//物理公司编号;
19 String LogisticCode = ""//物流运单号;
20 String ReqURL = URL + "?ShipperCode=" + ShipperCode + "&LogisticCode=" + LogisticCode;
21 String result = sendPost(ReqURL);
22 write(result,"test");
23 }
24 /**
25 * 向指定 URL 发送POST方法的请求
26 * @return 远程资源的响应结果
27 */
28 private static String sendPost(String url) {
29 OutputStreamWriter out = null;
30 BufferedReader in = null;
31 StringBuilder result = new StringBuilder();
32 try {
33 URL realUrl = new URL(url);
34 HttpURLConnection conn =(HttpURLConnection) realUrl.openConnection();
35 // 发送POST请求必须设置如下两行
36 conn.setDoOutput(true);
37 conn.setDoInput(true);
38 // POST方法
39 conn.setRequestMethod("POST");
40 // 设置通用的请求属性
41 conn.setRequestProperty("accept", "*/*");
42 conn.setRequestProperty("connection", "Keep-Alive");
43 conn.setRequestProperty("user-agent",
44 "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
45 conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
46 conn.setRequestProperty("kdniao-nocache", "true");
47 conn.connect();
48 // 获取URLConnection对象对应的输出流
49 out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
50 // 定义BufferedReader输入流来读取URL的响应
51 in = new BufferedReader(
52 new InputStreamReader(conn.getInputStream(), "UTF-8"));
53 String line;
54 while ((line = in.readLine()) != null) {
55 result.append(line);
56 }
57 } catch (Exception e) {
58 e.printStackTrace();
59 }
60 //使用finally块来关闭输出流、输入流
61 finally{
62 try{
63 if(out!=null){
64 out.close();
65 }
66 if(in!=null){
67 in.close();
68 }
69 }
70 catch(IOException ex){
71 ex.printStackTrace();
72 }
73 }
74 return result.toString();
75 }
76 /*@result 服务器返回的html
77 *@fileName 保存的文件名字
78 * */
79 public static void write(String result,String fileName) {
80 FileWriter fw = null;
81 try {
82 //如果文件存在，则追加内容；如果文件不存在，则创建文件
83 File f=new File("E:\\"+fileName+".html");
84 fw = new FileWriter(f, true);
85 } catch (IOException e) {
86 e.printStackTrace();
87 }
88 PrintWriter pw = new PrintWriter(fw);
89 pw.print(result);
90 pw.flush();
91 try {
92 fw.flush();
93 pw.close();
94 fw.close();
95 } catch (IOException e) {
96 e.printStackTrace();
97 }
98 }
99 }
时间： 2024-10-31 03:12:09