java实现批量对比文件

た入场券 2021-09-21 23:42 364阅读 0赞

还在苦恼文本对比困难？接下来带你不使用对比工具实现文本对比，领略系统黑科技的强大，哈哈哈

1.首先准备两个需要对比的文档，a.txt和b.txt。  
a.txt  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzQ5NTM5MA_size_16_color_FFFFFF_t_70]  
b.txt![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzQ5NTM5MA_size_16_color_FFFFFF_t_70 1]  
2.打开cmd，输入fc 后边跟需要对比的文件路径。![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzQ5NTM5MA_size_16_color_FFFFFF_t_70 2]  
3.轻敲回车，结果清晰的展现在你眼前，哈哈哈。![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzQ5NTM5MA_size_16_color_FFFFFF_t_70 3]  
4.拓展：利用java调用bat脚本，结合bat脚本后边拼接->,即可打印输出，实现批量对比文件。

public  static void mvnInstall(){ 
            String springClassPathResource = execDos.springClassPathResource();
            BufferedReader br = null;
            try { 
                System.out.println("springClassPathResource---------"+springClassPathResource);
                Process p = Runtime.getRuntime().exec( "java -cp bin notepad.exe" + " E:\\Users\\17315\\Workspaces\\Idea2018\\execd-emo\\src\\main\\resources\\mvn-install" + " 888");
                br = new BufferedReader(new InputStreamReader(p.getInputStream()));
                String line = null;
                while ((line = br.readLine()) != null) { 
                    System.out.println(line);
                }
            } catch (Exception e) { 
                e.printStackTrace();
            } finally { 
    
                if (br != null) { 
                    try { 
                        br.close();
                    } catch (Exception e) { 
                        e.printStackTrace();
                    }
                }
            }
        }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzQ5NTM5MA_size_16_color_FFFFFF_t_70]: /images/20210920/e96ba12131a14b07b491e57a60999ec1.png
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzQ5NTM5MA_size_16_color_FFFFFF_t_70 3]: /images/20210920/795cbfd0b29b4498b711ab9e8132c924.png