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.ini格式的程序配置文件中使用到的

时间：2021-07-01 10:21:17 帮助过：2人阅读

从网上找的，读取文件，改变键值对的方法。




  1. package com.sdut.edu.tools;
  3. import java.io.BufferedReader;
  4. import java.io.BufferedWriter;
  5. import java.io.FileReader;
  6. import java.io.FileWriter;
  7. import java.io.IOException;
  8. import java.util.regex.Matcher;
  9. import java.util.regex.Pattern;
  11. public class TestIni {
  13. private static String file="/sdcard/test.ini";
  15. public static String getProfileString(
  17. String section,
  18. String variable,
  19. String defaultValue)
  20. throws IOException {
  22. String strLine, value = "";
  23. BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
  24. boolean isInSection = false;
  25. try {
  26. while ((strLine = bufferedReader.readLine()) != null) {
  27. strLine = strLine.trim();
  28. //strLine = strLine.split("[;]")[0];
  29. Pattern p;
  30. Matcher m;
  31. p = Pattern.compile("\\["+section+"\\]");
  32. m = p.matcher((strLine));
  33. if (m.matches()) {
  34. p = Pattern.compile("\\["+section+"\\]");
  35. m = p.matcher(strLine);
  36. if (m.matches()) {
  37. isInSection = true;
  38. } else {
  39. isInSection = false;
  40. }
  41. }
  42. if (isInSection == true) {
  43. strLine = strLine.trim();
  44. String[] strArray = strLine.split("=");
  45. if (strArray.length == 1) {
  46. value = strArray[0].trim();
  47. if (value.equalsIgnoreCase(variable)) {
  48. value = "";
  49. break;
  50. // return value;
  51. }
  52. } else if (strArray.length == 2) {
  53. value = strArray[0].trim();
  54. if (value.equalsIgnoreCase(variable)) {
  55. value = strArray[1].trim();
  56. break;
  57. // return value;
  58. }
  59. } else if (strArray.length > 2) {
  60. value = strArray[0].trim();
  61. if (value.equalsIgnoreCase(variable)) {
  62. value = strLine.substring(strLine.indexOf("=") + 1).trim();
  63. break;
  64. // return value;
  65. }
  66. }
  67. }
  68. System.out.println("");
  69. }
  70. } finally {
  71. bufferedReader.close();
  72. }
  73. System.out.println("value=====" +value);
  74. return value;
  75. }
  78. public static boolean setProfileString(
  79. String section,
  80. String variable,
  81. String value)
  82. throws IOException {
  83. String fileContent, allLine,strLine, newLine, remarkStr;
  84. String getValue;
  85. BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
  86. boolean isInSection = false;
  87. fileContent = "";
  88. try {
  89. while ((allLine = bufferedReader.readLine()) != null) {
  90. allLine = allLine.trim();
  91. // System.out.println("allLine == "+allLine);
  92. strLine = allLine;
  93. Pattern p;
  94. Matcher m;
  95. p = Pattern.compile("\\["+section+"\\]");
  96. m = p.matcher((strLine));
  97. if (m.matches()) {
  98. // System.out.println("+++++++ ");
  99. p = Pattern.compile("\\["+section+"\\]");
  100. m = p.matcher(strLine);
  101. if (m.matches()) {
  102. // System.out.println("true ");
  103. isInSection = true;
  104. } else {
  105. isInSection = false;
  106. // System.out.println("+++++++ ");
  107. }
  108. }
  109. if (isInSection == true) {
  110. strLine = strLine.trim();
  111. String[] strArray = strLine.split("=");
  112. getValue = strArray[0].trim();
  113. if (getValue.equalsIgnoreCase(variable)) {
  114. // newLine = getValue + " = " + value + " " + remarkStr;
  115. newLine = getValue + " = " + value + " ";
  116. fileContent += newLine + "\r\n";
  117. while ((allLine = bufferedReader.readLine()) != null) {
  118. fileContent += allLine + "\r\n";
  119. }
  120. bufferedReader.close();
  121. BufferedWriter bufferedWriter =
  122. new BufferedWriter(new FileWriter(file, false));
  123. bufferedWriter.write(fileContent);
  124. bufferedWriter.flush();
  125. bufferedWriter.close();
  126. return true;
  127. }
  128. }
  129. fileContent += allLine + "\r\n";
  130. }
  131. }catch(IOException ex){
  132. throw ex;
  133. } finally {
  134. bufferedReader.close();
  135. }
  136. return false;
  137. }
  139. }

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