本文实例讲述了Java编程实现比对两个文本文件并标记相同与不同之处的方法。分享给大家供大家参考,具体如下:
使用需求:
文件1里面是需要比较的内容,文件2是被比较的文本,现在需要找到在文件1中每一行的文本在文件2中是否存在并相等,如果相等,就在一份结果文件中输出,文件1的哪一行与文件2的哪一行相同,反之不相同就输出文件1的哪一行不相同货不存在。
Java代码如下,输出的是result.txt文件,这个文件的行号和文件1保持一致,所以result中某一行的结果就是对应的文件1中这行数据在文件2中比较之后的结果。
(需要注意文件1和文件2是通过每一行的内容进行比较)
最后为了方便查看可以通过Notepad++查看:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
package com.it.aron; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; /** * check repetitive text * @author: aronxu * @version: 1.0, Sep 22, 2015 */ public class AutoCheckText { private static final String FILE_PATH = "D:/text1.txt" ; private static final String COMPARED_FILE_PATH = "D:/text2.txt" ; private static final String RESULT_FILE_PATH = "D:/result.txt" ; public static void main(String[] args) { System.out.println( "======Start Search!=======" ); long startTime = System.currentTimeMillis(); // Read first file File file = new File(FILE_PATH); File comparedFile = new File(COMPARED_FILE_PATH); BufferedReader br = null ; BufferedReader cbr = null ; BufferedWriter rbw = null ; try { br = new BufferedReader( new FileReader(file)); cbr = new BufferedReader( new FileReader(comparedFile)); cbr.mark( 90000000 ); rbw = new BufferedWriter( new FileWriter(RESULT_FILE_PATH)); String lineText = null ; while ((lineText = br.readLine()) != null ) { String searchText = lineText.trim(); searchAndSignProcess(searchText, cbr, rbw); } long endTime = System.currentTimeMillis(); System.out.println( "======Process Over!=======" ); System.out.println( "Time Spending:" + ((endTime - startTime) / 1000D) + "s" ); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { if (br != null ) { try { br.close(); } catch (IOException e) { e.printStackTrace(); } finally { if (cbr != null && rbw != null ) { try { cbr.close(); rbw.close(); } catch (IOException e) { e.printStackTrace(); } } } } } } public static void searchAndSignProcess(String searchText, BufferedReader comparedReader, BufferedWriter rbw) throws IOException { String lineStr = "-\n" ; if (searchText == null ) { return ; } if ( "" .equals(searchText)) { rbw.write(lineStr); return ; } String lineText = null ; int lineNum = 1 ; while ((lineText = comparedReader.readLine()) != null ) { String comparedLine = lineText.trim(); if (searchText.equals(comparedLine)) { lineStr = "###=Equal:" + lineNum + "=###\n" ; break ; } lineNum++; } rbw.write(lineStr); comparedReader.reset(); } } |
text1.txt内容:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
myaccount.msg.register.register=Registro Personas myaccount.msg.register.your_company=¿Eres empresa? myaccount.msg.register.sign_up=Registrate aquí myaccount.msg.register.fields_compellent=Todos los campos son obligatorios myaccount.msg.register.account_data=Datos de la cuenta myaccount.msg.register.email=E-mail: myaccount.msg.register.confirm_email=Confirma tu E-mail: myaccount.msg.register.password=Contraseña: myaccount.msg.register.confirm_password=Confirma tu Contraseña: myaccount.msg.register.personal_data=Datos personales myaccount.msg.register.first_name=Nombre: myaccount.msg.register.last_name=Apellido Paterno: myaccount.msg.register.middle_name=Apellido Materno: myaccount.msg.register.country=País de Residencia: myaccount.msg.register.id_card=Cédula de Identidad: myaccount.msg.register.genero=Género: myaccount.msg.register.male=Masculino: myaccount.msg.register.female=Femenino: myaccount.msg.register.birth=Fecha de Nacimiento: myaccount.msg.register.day=Día myaccount.msg.register.month=Mes |
text2.txt内容:
1
2
3
4
5
6
7
8
9
10
11
12
13
|
myaccount.msg.register.country=País de Residencia: myaccount.msg.register.confirm_password=Confirma tu Contraseña: myaccount.msg.register.last_name=Apellido Paterno: myaccount.msg.register.middle_name=Apellido Materno: myaccount.msg.register.id_card=Cédula de Identidad: myaccount.msg.register.genero=Género: myaccount.msg.register.male=Masculino: myaccount.msg.register.female=Femenino: myaccount.msg.register.personal_data=Datos personales myaccount.msg.register.first_name=Nombre: |
result.txt内容:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
- - - - - - - - - ###=Equal:2=### ###=Equal:12=### ###=Equal:13=### - ###=Equal:4=### ###=Equal:5=### ###=Equal:1=### ###=Equal:7=### - ###=Equal:9=### ###=Equal:10=### ###=Equal:11=### - - - |
希望本文所述对大家java程序设计有所帮助。
原文链接:http://blog.csdn.net/aronhu/article/details/48680349