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1 <?xml version="1.0" encoding="UTF-8"?>
2 <project version="4">
3 <component name="CompilerConfiguration">
4 <option name="DEFAULT_COMPILER" value="Javac" />
5 <resourceExtensions />
6 <wildcardResourcePatterns>
7 <entry name="!?*.java" />
8 <entry name="!?*.form" />
9 <entry name="!?*.class" />
10 <entry name="!?*.groovy" />
11 <entry name="!?*.scala" />
12 <entry name="!?*.flex" />
13 <entry name="!?*.kt" />
14 <entry name="!?*.clj" />
15 </wildcardResourcePatterns>
16 <annotationProcessing>
17 <profile default="true" name="Default" enabled="false">
18 <processorPath useClasspath="true" />
19 </profile>
20 </annotationProcessing>
21 </component>
22 </project>
23
1 <html>Simple <b>Java</b> application that includes a class with <code>main()</code> method</html>
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1 <?xml version="1.0" encoding="UTF-8"?>
2 <project version="4">
3 <component name="Encoding" useUTFGuessing="true" native2AsciiForPropertiesFiles="false" />
4 </project>
5
1 <?xml version="1.0" encoding="UTF-8"?>
2 <project version="4">
3 <component name="EntryPointsManager">
4 <entry_points version="2.0" />
5 </component>
6 <component name="ProjectKey">
7 <option name="state" value="project://63537948-39a4-48a0-9c97-34259a0fa913" />
8 </component>
9 <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
10 <output url="file://$PROJECT_DIR$/out" />
11 </component>
12 </project>
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1 <?xml version="1.0" encoding="UTF-8"?>
2 <project version="4">
3 <component name="ProjectModuleManager">
4 <modules>
5 <module fileurl="file://$PROJECT_DIR$/TiandituDownloader.iml" filepath="$PROJECT_DIR$/TiandituDownloader.iml" />
6 </modules>
7 </component>
8 </project>
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1 <?xml version="1.0" encoding="UTF-8"?>
2 <project version="4">
3 <component name="VcsDirectoryMappings">
4 <mapping directory="" vcs="" />
5 </component>
6 </project>
7
1 <?xml version="1.0" encoding="UTF-8"?>
2 <module type="JAVA_MODULE" version="4">
3 <component name="NewModuleRootManager" inherit-compiler-output="true">
4 <exclude-output />
5 <content url="file://$MODULE_DIR$">
6 <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
7 </content>
8 <orderEntry type="inheritedJdk" />
9 <orderEntry type="sourceFolder" forTests="false" />
10 <orderEntry type="module-library">
11 <library>
12 <CLASSES>
13 <root url="jar://$USER_HOME$/Downloads/sqlite-jdbc-3.21.0-2.jar!/" />
14 </CLASSES>
15 <JAVADOC />
16 <SOURCES />
17 </library>
18 </orderEntry>
19 </component>
20 </module>
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1 public class CalEnv {
2
3 private int startX;
4
5 private int startY;
6
7 public CalEnv(int startX, int startY) {
8 this.startX = startX;
9 this.startY = startY;
10 }
11
12 public int getStartX() {
13 return startX;
14 }
15
16 public void setStartX(int startX) {
17 this.startX = startX;
18 }
19
20 public int getStartY() {
21 return startY;
22 }
23
24 public void setStartY(int startY) {
25 this.startY = startY;
26 }
27 }
1 import java.sql.SQLException;
2
3 public class Main {
4
5
6 public static void main(String[] args) throws SQLException {
7 System.out.println("Hello World!");
8
9 TiandituDownload tiandituDownload = new TiandituDownload("my.db");
10 Point pt = new Point(29.76,106.64);
11 Point pt2 = new Point(35.33, 108.12);
12 // tiandituDownload.Download(pt, pt2, 9, TianDiTuTiledMapServiceType.IMG_C);
13 tiandituDownload.Download(pt, pt2, 2,9, TianDiTuTiledMapServiceType.IMG_C);
14 }
15 }
1 public class Point {
2
3 private double lat;
4
5 private double lng;
6
7 public Point(){
8
9 }
10
11 public Point(double lat, double lng){
12 this.lat = lat;
13 this.lng = lng;
14 }
15
16 public double getLat() {
17 return lat;
18 }
19
20 public void setLat(double lat) {
21 this.lat = lat;
22 }
23
24 public double getLng() {
25 return lng;
26 }
27
28 public void setLng(double lng) {
29 this.lng = lng;
30 }
31
32 }
1 import java.util.Random;
2
3 /**
4 * Created by jiangbotao on 2018/3/23.
5 */
6
7 public class TDTUrl {
8
9 private TianDiTuTiledMapServiceType _tiandituMapServiceType;
10 private int _level;
11 private int _col;
12 private int _row;
13
14 public TDTUrl(int level, int col, int row, TianDiTuTiledMapServiceType tiandituMapServiceType) {
15 this._level = level;
16 this._col = col;
17 this._row = row;
18 this._tiandituMapServiceType = tiandituMapServiceType;
19 }
20
21 public String generatUrl() {
22
23 StringBuilder url = new StringBuilder("http://t");
24 Random random = new Random();
25 int subdomain = (random.nextInt(6) + 1);
26 url.append(subdomain);
27 switch (this._tiandituMapServiceType) {
28 case VEC_C:
29 url.append(".tianditu.com/DataServer?T=vec_c&X=").append(this._col).append("&Y=").append(this._row).append("&L=").append(this._level);
30 break;
31 case CVA_C:
32 url.append(".tianditu.com/DataServer?T=cva_c&X=").append(this._col).append("&Y=").append(this._row).append("&L=").append(this._level);
33 break;
34 case CIA_C:
35 url.append(".tianditu.com/DataServer?T=cia_c&X=").append(this._col).append("&Y=").append(this._row).append("&L=").append(this._level);
36 break;
37 case IMG_C:
38 url.append(".tianditu.com/DataServer?T=img_c&X=").append(this._col).append("&Y=").append(this._row).append("&L=").append(this._level);
39 break;
40 case VEC_W:
41 url.append(".tianditu.com/DataServer?T=vec_w&X=").append(this._col).append("&Y=").append(this._row).append("&L=").append(this._level);
42 break;
43 case CVA_W:
44 url.append(".tianditu.com/DataServer?T=cva_w&X=").append(this._col).append("&Y=").append(this._row).append("&L=").append(this._level);
45 break;
46 case CIA_W:
47 url.append(".tianditu.com/DataServer?T=cia_w&X=").append(this._col).append("&Y=").append(this._row).append("&L=").append(this._level);
48 break;
49 case IMG_W:
50 url.append(".tianditu.com/DataServer?T=img_w&X=").append(this._col).append("&Y=").append(this._row).append("&L=").append(this._level);
51 break;
52 default:
53 return null;
54 }
55 return url.toString();
56 }
57 }
1
2 /**
3 * Created by jiangbotao on 2018/3/23.
4 */
5
6 public enum TianDiTuTiledMapServiceType {
7
8 /**
9 * 矢量数据,CGCS2000
10 * */
11 VEC_C,
12 /**
13 * 影像数据
14 * */
15 IMG_C,
16 /**
17 * 矢量注记
18 * */
19 CVA_C,
20 /**
21 * 影像注记
22 * */
23 CIA_C,
24 /**
25 * 矢量数据，web墨卡托4326
26 */
27 VEC_W,
28 /**
29 * 影像数据
30 * */
31 IMG_W,
32 /**
33 * 矢量注记
34 * */
35 CVA_W,
36 /**
37 * 影像注记
38 * */
39 CIA_W;
40
41 }
1 import java.io.BufferedInputStream;
2 import java.io.ByteArrayOutputStream;
3 import java.net.HttpURLConnection;
4 import java.net.URL;
5 import java.sql.*;
6
7 public class TiandituDownload {
8
9 double[] res = {
10 1.40625,
11 0.703125,
12 0.3515625,
13 0.17578125,
14 0.087890625,
15 0.0439453125,
16 0.02197265625,
17 0.010986328125,
18 0.0054931640625,
19 0.00274658203125,
20 0.001373291015625,
21 0.0006866455078125,
22 0.00034332275390625,
23 0.000171661376953125,
24 8.58306884765629E-05,
25 4.29153442382814E-05,
26 2.14576721191407E-05,
27 1.07288360595703E-05,
28 5.36441802978515E-06,
29 2.68220901489258E-06,
30 1.34110450744629E-06
31 };
32 double[] scale = {
33 400000000,
34 295497598.5708346,
35 147748799.285417,
36 73874399.6427087,
37 36937199.8213544,
38 18468599.9106772,
39 9234299.95533859,
40 4617149.97766929,
41 2308574.98883465,
42 1154287.49441732,
43 577143.747208662,
44 288571.873604331,
45 144285.936802165,
46 72142.9684010827,
47 36071.4842005414,
48 18035.7421002707,
49 9017.87105013534,
50 4508.93552506767,
51 2254.467762533835,
52 1127.2338812669175,
53 563.616940
54 };
55
56 int minLevel = 1;
57 int maxLevel = 2;
58
59 // 保存数据的sqlite文件路径
60 String dbpath;
61
62 Connection conn = null;
63
64 Statement stmt = null;
65
66 public TiandituDownload(String dbpath){
67 this.dbpath =dbpath;
68 }
69
70 private CalEnv calculateEnv(Point originPoint, int level){
71 int startX = (int) Math.floor((originPoint.getLng() + 180)/(256 * res[level]));
72 int startY = (int) Math.floor((90 - originPoint.getLat())/(256 * res[level]));
73 if(startX<0)startX = 0;
74 if(startY<0)startY = 0;
75
76 return new CalEnv(startX, startY);
77 }
78
79 private void Download(Point minPoint, Point maxPoint, int level, TianDiTuTiledMapServiceType type){
80
81 try{
82 CalEnv startEnv = calculateEnv(minPoint, level);
83 CalEnv stopEnv = calculateEnv(maxPoint, level);
84
85 // System.out.println(startEnv.getStartX() + ":" +startEnv.getStartY());
86 // System.out.println(stopEnv.getStartX() + ":" +stopEnv.getStartY());
87 PreparedStatement preparedStatement;
88 ResultSet rs;
89
90 for(int i = startEnv.getStartX(); i <= stopEnv.getStartX(); i++){
91 for(int j = stopEnv.getStartY(); j<= startEnv.getStartY(); j++){
92 boolean hasData = false;
93 try{
94 // 查询瓦片是否存在
95 String querySQL = "select * from " + type + " where TILELEVEL = " + level + " and TILECOL = " + i + " and TILEROW = " + j;
96 rs = stmt.executeQuery(querySQL);
97 while(rs.next()){
98 hasData = true;
99 }
100 // 如果不存在
101 if(!hasData){
102 String url = new TDTUrl(level, i, j, type).generatUrl();
103 // 获得地图瓦片
104 byte[] img = getTile(url);
105 System.out.println("正在下载 "+url);
106 // 将数据写入sqlite
107 String insertSQL = "INSERT INTO "+ type + "(TILELEVEL,TILECOL,TILEROW,TILEDATA) VALUES (?,?,?,?)";
108 preparedStatement = conn.prepareStatement(insertSQL);
109 preparedStatement.setInt(1, level);
110 preparedStatement.setInt(2, i);
111 preparedStatement.setInt(3, j);
112 preparedStatement.setBytes(4, img);
113 preparedStatement.execute();
114 }
115 }catch (Exception e){
116 System.out.println(e.getMessage());
117 }
118 }
119 conn.commit();
120 }
121 }catch (Exception e){
122 System.out.println(e.getMessage());
123 }
124 }
125
126 public void Download(Point minPoint, Point maxPoint, int minLevel, int maxLevel, TianDiTuTiledMapServiceType type) throws SQLException {
127 try {
128 Class.forName("org.sqlite.JDBC");
129 conn = DriverManager.getConnection("jdbc:sqlite:" + this.dbpath);
130 conn.setAutoCommit(false);
131 stmt = conn.createStatement();
132 // 新建数据表
133 String sql = "CREATE TABLE IF NOT EXISTS " + type +
134 "(TILELEVEL INT," +
135 "TILECOL INT," +
136 "TILEROW INT," +
137 "TILEDATA BLOB)";
138 stmt.executeUpdate(sql);
139 stmt.close();
140
141 for(int m = minLevel; m<= maxLevel; m++){
142 this.Download(minPoint, maxPoint, m, type);
143 }
144 conn.close();
145 System.out.println("下载完成");
146
147 }catch (Exception e){
148
149 }
150 }
151
152 protected byte[] getTile(String url) throws Exception {
153 byte[] result = null;
154 try {
155 // 如果没有就直接从web上读取
156 ByteArrayOutputStream bos = new ByteArrayOutputStream();
157
158 URL sjwurl = new URL(url);
159 HttpURLConnection httpUrl = null;
160 BufferedInputStream bis = null;
161 byte[] buf = new byte[1024];
162
163 httpUrl = (HttpURLConnection) sjwurl.openConnection();
164 httpUrl.connect();
165 bis = new BufferedInputStream(httpUrl.getInputStream());
166
167 while (true) {
168 int bytes_read = bis.read(buf);
169 if (bytes_read > 0) {
170 bos.write(buf, 0, bytes_read);
171 } else {
172 break;
173 }
174 }
175
176 bis.close();
177 httpUrl.disconnect();
178
179 result = bos.toByteArray();
180 } catch (Exception ex) {
181 ex.printStackTrace();
182 }
183
184 return result;
185 }
186 }