ini 文件读写

awk就是awp加ak

1. package com.3a.util.paraconf;
   
2. 
   
3. /**
   
4. * Ini configuration file helper.
   
5. * By 3a
   
6. * 2007-1-16
   
7. */
   
8. 
   
9. import java.io.*;
   
10. import java.util.*;
    
11. import java.util.regex.*;
    
12. import java.lang.reflect.*;
    
13. import com.3a.test.FtpSection;
    
14. 
    
15. public class ConfigFile implements ConfigFileListener {
    
16. 
    
17.   String PATTERN_REM = "^#.*$";
    
18.   String PATTERN_SECTION = "^\\[([^\\]]*).*$";
    
19.   String PATTERN_PROPERTY = "(^[^#][^=]*)=(.*)$";
    
20. 
    
21.   String _fileName = null;
    
22.   ArrayList _sections = null;
    
23.   ArrayList _listeners = null;
    
24. 
    
25.   Class _sectionClass = ConfigFileSection.class;
    
26. 
    
27.   public ConfigFile(String fileName) {
    
28. 
    
29.     _fileName = fileName;
    
30.     _sections = new ArrayList();
    
31.     _listeners = new ArrayList();
    
32.   }
    
33. 
    
34.   public void setSectionType(Class sectionClass) {
    
35. 
    
36.     _sectionClass = sectionClass;
    
37.   }
    
38. 
    
39.   public void addListener(ConfigFileListener listener){
    
40. 
    
41.     _listeners.add(listener);
    
42.   }
    
43. 
    
44.   public void addSection(ConfigFileSection section){
    
45. 
    
46.     _sections.add(section);
    
47.   }
    
48. 
    
49.   ConfigFileSection genSection(Constructor generator, String sectionName) throws InstantiationException, IllegalAccessException, InvocationTargetException {
    
50. 
    
51.     Object[] args = { sectionName };
    
52.     return (ConfigFileSection) generator.newInstance(args);
    
53.   }
    
54. 
    
55.   String parseSectionName(Pattern pattern, String line) {
    
56. 
    
57.     Matcher matcher = pattern.matcher(line);
    
58.     return matcher.matches() ? matcher.group(1) : null;
    
59.   }
    
60. 
    
61.   boolean parseProperty(Pattern pattern, String line, String[] property) {
    
62. 
    
63.     boolean result = false;
    
64.     Matcher matcher = pattern.matcher(line);
    
65. 
    
66.     if (matcher.matches()){
    
67. 
    
68.       property[0] = matcher.group(1);
    
69.       property[1] = matcher.group(2);
    
70.       result = true;
    
71.     }
    
72.     return result;
    
73.   }
    
74. 
    
75.   public boolean loadFromFile() {
    
76. 
    
77.     boolean result = false;
    
78.     String line = null;
    
79.     String sectionName = null;
    
80.     String[] property = new String[2];
    
81.     ConfigFileSection section = null;
    
82.     BufferedReader reader = null;
    
83.     Pattern sectionPattern = Pattern.compile(PATTERN_SECTION);
    
84.     Pattern propertyPattern = Pattern.compile(PATTERN_PROPERTY);
    
85.     Pattern remPattern = Pattern.compile(PATTERN_REM);
    
86. 
    
87.     try {
    
88. 
    
89.       Class[] _param = { String.class };
    
90.       Constructor generator = _sectionClass.getConstructor(_param);
    
91.       reader = new BufferedReader(new FileReader(_fileName));
    
92. 
    
93.       while ( (line = reader.readLine()) != null) {
    
94. 
    
95.         // read comment
    
96.         if (line == null || line.trim().length() == 0 || remPattern.matcher(line).matches()) continue;
    
97. 
    
98.         // read section
    
99.         else if ( (sectionName = parseSectionName(sectionPattern, line)) != null) {
    
100. 
     
101.           section = genSection(generator, sectionName);
     
102.           System.out.println("ConfigFile.loading section ... " + sectionName);
     
103.           _sections.add(section);
     
104.         }
     
105.         // read properties
     
106.         else if (section != null && parseProperty(propertyPattern, line, property))
     
107.           section.addProperty(property[0], property[1]);
     
108.       }
     
109. 
     
110.       result = true;
     
111.     }
     
112.     catch (Exception e) {
     
113. 
     
114.       e.printStackTrace();
     
115.     }
     
116. 
     
117.     try { reader.close(); } catch (Exception e) {}
     
118. 
     
119.     return result;
     
120.   }
     
121. 
     
122.   public void save() throws IOException {
     
123. 
     
124.     saveToFile(_fileName);
     
125.   }
     
126. 
     
127.   void fireOnSave(ConfigFileSection section, int index){
     
128. 
     
129.     ConfigFileEvent event = new ConfigFileEvent(this, section, index);
     
130. 
     
131.     for (int i = 0; i < _listeners.size(); i++) ((ConfigFileListener) _listeners.get(i)).onSave(event);
     
132.   }
     
133. 
     
134.   public boolean saveToFile(String fileName) throws IOException {
     
135. 
     
136.     boolean result = false;
     
137.     BufferedWriter writer = null;
     
138. 
     
139.     try {
     
140. 
     
141.       writer = new BufferedWriter(new FileWriter(fileName));
     
142. 
     
143.       for (int i = 0; i < _sections.size(); i++){
     
144. 
     
145.         fireOnSave((ConfigFileSection) _sections.get(i), i);
     
146.         writer.write(_sections.get(i).toString());
     
147.       }
     
148. 
     
149.       writer.flush();
     
150.       result = true;
     
151.     }
     
152.     catch (Exception e) {
     
153.       e.printStackTrace();
     
154.     }
     
155. 
     
156.     try { writer.close(); } catch (Exception e) {}
     
157. 
     
158.     return result;
     
159.   }
     
160. 
     
161.   public ConfigFileSection getSection(int index){
     
162. 
     
163.     return (ConfigFileSection) _sections.get(index);
     
164.   }
     
165. 
     
166.   public int getSectionCount(){
     
167. 
     
168.     return _sections != null ? _sections.size() : 0;
     
169.   }
     
170. 
     
171.   public void removeSection(String section){
     
172. 
     
173.     ConfigFileSection tmp = null;
     
174.     for (int i=0; i < _sections.size(); i++){
     
175. 
     
176.       tmp = (ConfigFileSection) _sections.get(i);
     
177.       if (section.equals(tmp.getName())){ _sections.remove(i); break; }
     
178.     }
     
179.   }
     
180. 
     
181.   public ConfigFileSection getSection(String section) {
     
182. 
     
183.     ConfigFileSection result = null, tmp = null;
     
184. 
     
185.     for (int i=0; i < _sections.size(); i++){
     
186. 
     
187.       tmp = (ConfigFileSection) _sections.get(i);
     
188.       if (section.equals(tmp.getName())){ result = tmp; break; }
     
189.     }
     
190.     return result;
     
191.   }
     
192. 
     
193.   public void onSave(ConfigFileEvent event){
     
194. 
     
195.     FtpSection section = (FtpSection) event.getSection();
     
196.     if ( FtpSection.SECTION_MSC_ID.equals(section.getSectionType()) )
     
197.       section.addProperty("Index", String.valueOf(event.getIndex()));
     
198.   }
     
199. 
     
200.   public static void main(String[] args) throws Exception {
     
201. 
     
202.     //**
     
203.     ConfigFile configFile = new ConfigFile("g:/ftp.ini");
     
204.     configFile.setSectionType(FtpSection.class);
     
205.     configFile.addListener(this);
     
206.     configFile.loadFromFile();
     
207.     FtpSection section = (FtpSection) configFile.getSection("HOST01");
     
208.     System.out.println("UFO: "+section.getSectionType() +"," + section.getSectionDescribe());
     
209.     section.addProperty("Name", "3a");
     
210.     section.changeProperty("Passwd", "3a");
     
211.     configFile.removeSection("Global");
     
212.     configFile.saveToFile("e:/ftp.ini");
     
213.     /**/
     
214.   }
     
215. }

复制代码

1. 
   
2. package com.3a.util.paraconf;
   
3. 
   
4. public interface ConfigFileListener {
   
5. 
   
6.   public void onSave(ConfigFileEvent event);
   
7. }

复制代码

[ 本帖最后由 awk就是awp加ak 于 2007-1-22 11:26 编辑 ]

awk就是awp加ak

1. package com.3a.util.paraconf;
   
2. 
   
3. import java.util.*;
   
4. 
   
5. public class ConfigFileSection {
   
6. 
   
7.   HashMap _data = null;
   
8.   String _name = null;
   
9.   String NEW_LINE = "\r\n";
   
10. 
    
11.   public ConfigFileSection(){
    
12. 
    
13.     _data = new HashMap();
    
14.   }
    
15. 
    
16.   public ConfigFileSection(String sectionName) {
    
17. 
    
18.     this();
    
19.     _name = sectionName;
    
20.   }
    
21. 
    
22.   public void setName(String name){
    
23. 
    
24.     _name = name;
    
25.   }
    
26. 
    
27.   public String getName(){
    
28. 
    
29.     return _name;
    
30.   }
    
31. 
    
32.   public String getProperty(String property){
    
33. 
    
34.     return (String) _data.get(property);
    
35.   }
    
36. 
    
37.   public void addProperty(String property, String value){
    
38. 
    
39.     _data.put(property, value);
    
40.   }
    
41. 
    
42.   public void changeProperty(String property, String value){
    
43. 
    
44.     if (_data.containsKey(property)) _data.put(property, value);
    
45.   }
    
46. 
    
47.   public String toString(){
    
48. 
    
49.     StringBuffer result = new StringBuffer(2000).append("[").append(_name).append("]").append(NEW_LINE);
    
50.     String key;
    
51.     for (Iterator keys = _data.keySet().iterator(); keys.hasNext(); ){
    
52. 
    
53.       key = (String) keys.next();
    
54.       result.append(key).append("=").append(_data.get(key)).append(NEW_LINE);
    
55.     }
    
56. 
    
57.     return result.toString();
    
58.   }
    
59. }

复制代码

1. package com.3a.test;
   
2. 
   
3. import com.3a.util.paraconf.ConfigFileSection;
   
4. import com.3a.util.common.*;
   
5. 
   
6. public class FtpSection extends ConfigFileSection {
   
7. 
   
8.   static final String SECTION_GLOBAL_ID = "0";
   
9.   static final String SECTION_SITE_ID = "1";
   
10.   static final String SECTION_HOST_ID = "2";
    
11. 
    
12.   static final String SECTION_GLOBAL = "Global";
    
13.   static final String SECTION_HOST = "HOST";
    
14. 
    
15.   static final String DESCRIBE_GLOBAL = "全局配置";
    
16.   static final String DESCRIBE_SITE = "站点信息";
    
17.   static final String DESCRIBE_HOST = "主机";
    
18. 
    
19.   public FtpSection(String sectionName){
    
20. 
    
21.     super(sectionName);
    
22.   }
    
23. 
    
24.   public String getSectionType() {
    
25. 
    
26.     String name = getName();
    
27.     return SECTION_GLOBAL.equals(name) ? SECTION_GLOBAL_ID : (name.startsWith(SECTION_HOST) ? SECTION_HOST_ID : SECTION_SITE_ID);
    
28.   }
    
29. 
    
30.   public String getSectionDescribe(){
    
31. 
    
32.     String type = getSectionType();
    
33.     return SECTION_GLOBAL_ID.equals(type) ? DESCRIBE_GLOBAL : (SECTION_HOST_ID.equals(type) ? DESCRIBE_HOST : DESCRIBE_SITE);
    
34.   }
    
35. }

复制代码

1. package com.3a.util.paraconf;
   
2. 
   
3. public class ConfigFileEvent {
   
4. 
   
5.   ConfigFile _controller = null;
   
6.   ConfigFileSection _section = null;
   
7.   int _index;
   
8. 
   
9.   public ConfigFileEvent(ConfigFile controller, ConfigFileSection section, int index) {
   
10. 
    
11.     _controller = controller;
    
12.     _section = section;
    
13.     _index = index;
    
14.   }
    
15. 
    
16.   public int getIndex(){ return _index; }
    
17.   public ConfigFile getController(){ return _controller; }
    
18.   public ConfigFileSection getSection(){ return _section; }
    
19. }

复制代码

[ 本帖最后由 awk就是awp加ak 于 2007-1-22 11:19 编辑 ]

awk就是awp加ak

欢迎大家测试，有问题找我 ^_^

chen_gxing

报错了，楼主。
Exception in thread "main" java.lang.NullPointerException
        at src.com.contrlfile.ConfigFile.main(ConfigFile.java:141)

那个INI文件学要写什么？

awk就是awp加ak

NullPointer 啊，我猜是ini文件的格式。。我认为是如下格式。。

[section]
#comment
prop1=val1
prop2=val2

btw，有个地方效率不高，反复 compile，其实只需要 compile 一次。
把 parseSectionName 里面的 Pattern 对象提取出来，作为参数，由 loadFromFile() 传递。

awk就是awp加ak

增加方法
int getSectionCount();
void removeSection(sectionName);

awk就是awp加ak

增加方法，其中 sectionClass 是 ConfigFileSection 的子类。
void setSection(Class sectionClass);

chen_gxing

谢谢，晚上再看看。

awk就是awp加ak

新增方法 ConfigFile.addListener()

awk就是awp加ak

附件懒得更新了(附件只是为更懒的人做的)，直接复制上面的代码好了 ^_^