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前几天给大家分享了一下,怎么样通过jsoup来从国家统计局官网获取全国省市县镇村的数据。错过的朋友请点击这里。
上文说到抓取到数据以后,我们怎么转换成我们想要格式呢?哈哈,解析方式可能很简单,但是有一点我是知道的,很多人是伸手党,那么我就把我的处理过程给大家分享出来,觉得不错的,请点个赞。
第一步:将获取到的txt文件转换成数据库文件:
这里需要备注一下,下文所有的资源压缩文件,解压密码都是我的博客园昵称。为什么要加密码给大家解释一下:前期发出的博文被其他很多站点爬取了,但是都没有原文链接或者转载说明,一点都不尊重原博文的版权。给大家带来的不便,敬请谅解。
上次博文处理后的文本数据下载地址:点击下载
废话不多说,直接上代码将抓取到的文本文件转换成数据库数据:
1 import java.io.BufferedReader;
2 import java.io.File;
3 import java.io.FileNotFoundException;
4 import java.io.FileReader;
5 import java.io.IOException;
6 import java.sql.Connection;
7 import java.sql.DriverManager;
8 import java.sql.SQLException;
9 import java.sql.Statement;
10
11 public class ResolveData1
12 {
13 private static Connection connection = null;
14
15 public static void main(String[] args)
16 {
17 initDB();
18
19 BufferedReader bufferedReader = null;
20 try
21 {
22 bufferedReader = new BufferedReader(new FileReader(new File("f:\\CityInfo.txt")));
23 String line = null;
24 while ((line = bufferedReader.readLine()) != null)
25 {
26 inser2DB(getCityName(line), getCityLevel(line), getCityCode(line));
27 System.out.println("处理中……");
28 }
29 } catch (FileNotFoundException e)
30 {
31 e.printStackTrace();
32 } catch (IOException e)
33 {
34 e.printStackTrace();
35 }
36 }
37
38 private static void initDB()
39 {
40 try
41 {
42 Class.forName("com.mysql.jdbc.Driver");
43 connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/51houseservice", "数据库账户",
44 "数据库密码");
45 } catch (SQLException e)
46 {
47 e.printStackTrace();
48 } catch (ClassNotFoundException e)
49 {
50 e.printStackTrace();
51 }
52 }
53
54 private static String getCityName(String line)
55 {
56 return line.substring(0, line.indexOf("{"));
57 }
58
59 private static String getCityCode(String line)
60 {
61 return line.substring(line.indexOf("[") + 1, line.indexOf("]"));
62 }
63
64 private static int getCityLevel(String line)
65 {
66 return Integer.parseInt(line.substring(line.indexOf("{") + 1, line.indexOf("}")));
67 }
68
69 private static void inser2DB(String cityName, int cityLevel, String cityCode)
70 {
71 try
72 {
73
74 Statement createStatement = connection.createStatement();
75 createStatement
76 .executeUpdate("insert into _51houseservice_citys_copy(city_name_zh,city_level,city_code) values(‘"
77 + cityName + "‘," + cityLevel + ",‘" + cityCode + "‘)");
78 } catch (SQLException e)
79 {
80 e.printStackTrace();
81 }
82 }
83 }
执行完以上程序以后,那么数据就已经妥妥的放入数据库了。存入数据库的数据,相信各位码农都是高手,这些数据都成了你们砧板上的与鱼肉了吧。
第二步:将数据库的每一行数据添加上其父城市
细心的朋友一定发现了,上面的每一个城市数据都只是包含一自己本身的详细信息,但是省级城市与市级城市之间没有任何关联。基于树形结构的数据在数据库应该怎样存储我就不多说了。这里就直接贴上关联各上下级关联的城市的代码:
接下来的是处理过程中的代码:
1 package com.wyhousesevice.test;
2 import java.sql.Connection;
3 import java.sql.DriverManager;
4 import java.sql.ResultSet;
5 import java.sql.SQLException;
6 import java.sql.Statement;
7 import java.util.ArrayList;
8 import java.util.List;
9
10 public class ResolveData3
11 {
12 private static Connection connection;
13
14 public static void main(String[] args)
15 {
16 initDB();
17 try
18 {
19 // 获取源表中一行数据
20 ResultSet rs = getAllCitys();
21 rs.next();
22 while (rs.next())
23 {
24 // 如果该项存在父ID,则跳过设置
25 if (rs.getInt("parent_id") == 0)
26 {
27 List<String> parentCodes = getParentCodes(rs.getString("city_code"));
28 // 获取目标数据库的数据ID
29 int parentId = getParentId(parentCodes, rs.getInt("city_level") - 1);
30 doUpdate(rs.getInt("id"), parentId);
31 System.out.println("handling:" + rs.getInt("id"));
32 }
33 }
34 }
35 catch (SQLException e)
36 {
37 e.printStackTrace();
38 }
39
40 closeDB();
41 }
42
43 private static void doUpdate(int id, int parentId)
44 {
45 try
46 {
47 Statement statement = connection.createStatement();
48 statement.executeUpdate("UPDATE _51houseservice_citys_copy SET parent_id = " + parentId + " WHERE id = "
49 + id);
50 }
51 catch (SQLException e)
52 {
53 e.printStackTrace();
54 }
55 }
56
57 private static int getParentId(List<String> parentCodes, int level) throws SQLException
58 {
59 Statement statement = connection.createStatement();
60 for (String string : parentCodes)
61 {
62 ResultSet executeQuery = statement
63 .executeQuery("select * from _51houseservice_citys_copy where city_code=‘" + string
64 + "‘ and city_level=" + level);
65 if (executeQuery.next())
66 {
67 return executeQuery.getInt("id");
68 }
69 }
70 return -1;
71 }
72
73 private static List<String> getParentCodes(String cityCode)
74 {
75 List<String> dataList = new ArrayList<String>();
76
77 if (cityCode.endsWith("0"))
78 {
79 String code = rmvLastZero(cityCode);
80 for (int i = 1; i < code.length() - 1; i++)
81 {
82 String substring = code.substring(0, code.length() - i);
83 StringBuilder sb = new StringBuilder(substring);
84 for (int j = substring.length(); j < 12; j++)
85 {
86 sb.append("0");
87 }
88 dataList.add(sb.toString());
89 }
90 }
91 else
92 {
93 for (int i = 1; i < cityCode.length() - 1; i++)
94 {
95 String substring = cityCode.substring(0, cityCode.length() - i);
96 StringBuilder sb = new StringBuilder(substring);
97 for (int j = 1; j <= i; j++)
98 {
99 sb.append("0");
100 }
101 dataList.add(sb.toString());
102 }
103 }
104 return dataList;
105 }
106
107 private static String rmvLastZero(String cityCode)
108 {
109 while (cityCode.endsWith("0"))
110 {
111 cityCode = cityCode.substring(0, cityCode.length() - 1);
112 }
113 return cityCode;
114 }
115
116 private static ResultSet getAllCitys()
117 {
118 try
119 {
120 Statement createStatement = connection.createStatement();
121 return createStatement.executeQuery("select * from _51houseservice_citys_copy");
122 }
123 catch (SQLException e)
124 {
125 e.printStackTrace();
126 return null;
127 }
128 }
129
130 private static void closeDB()
131 {
132 if (connection != null)
133 {
134 try
135 {
136 connection.close();
137 }
138 catch (SQLException e)
139 {
140 e.printStackTrace();
141 }
142 }
143 }
144
145 private static void initDB()
146 {
147 try
148 {
149 Class.forName("com.mysql.jdbc.Driver");
150 connection = DriverManager
151 .getConnection("jdbc:mysql://localhost:3306/51houseservice", "数据库账户", "数据库密码");
152 }
153 catch (SQLException e)
154 {
155 e.printStackTrace();
156 }
157 catch (ClassNotFoundException e)
158 {
159 e.printStackTrace();
160 }
161 }
162 }
接下来就需要时间处理了,慢慢的处理.....最终得到的sql转储文件结果如下:点击下载
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原文地址:http://www.cnblogs.com/liushaofeng89/p/4937714.html