java执行cmd命令并获取输出结果

傷城~ 2022-09-08 11:39 271阅读 0赞

参考文章：[java执行cmd命令并获取输出结果][java_cmd]

[ java 获取bat执行结果\_java中运行bat并获取结果][java _bat_java_bat]

# 示例一： #

## 1. java执行cmd命令并获取输出结果 ##

import java.io.BufferedReader;
    import java.io.InputStreamReader;
    
    import org.apache.commons.lang3.text.StrBuilder;
    
    /**
     * @author user1
     */
    public class DeleteProgram {
        /**
         * 执行cmd命令并获取输出结果
         */
        public static void run() {
            Runtime runtime = Runtime.getRuntime();
            try {
                BufferedReader br = new BufferedReader(
                        new InputStreamReader(
                                runtime.exec("ipconfig").getInputStream(),
                                "GB2312"
                        )
                );
                String line;
                StringBuilder b = new StringBuilder();
                while ((line = br.readLine()) != null) {
                    b.append(line).append("\n");
                }
                System.out.println(b);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
        public static void main(String[] args) {
            DeleteProgram delp = new DeleteProgram();
            delp.run();
        }
    }

## 2.获取您需要的字段  ##

public static String getbackage(String path) {
            Process p;
            //test.bat中的命令是ipconfig/all 
            String cmd = "aapt dump badging " + path;
            // String cmd="jarsigner -verify -verbose -certs C:\\Users\\Administrator\\Desktop\\PandaClient.apk";  
            String resultstr = null;
            try {
                //执行命令  
                p = Runtime.getRuntime().exec(cmd);
                //取得命令结果的输出流  
                InputStream fis = p.getInputStream();
                //用一个读输出流类去读  
                //用缓冲器读行  
                BufferedReader br = new BufferedReader(new InputStreamReader(fis, "GB2312"));
                String line = null;
                //直到读完为止  
                int i = 0;
                while ((line = br.readLine()) != null) {
                    if (line.contains("package:")) {  // 解析符合自己需要的內容，获取之后，直接返回。
    
                        resultstr = line;
                        break;
                    }
                    // resultstr=line;
                    i++;
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            return resultstr;
        }

# 示例二：  #

public String runbat(String batName) {
            String str = null;
    
            try {
                Process ps = Runtime.getRuntime().exec(batName);
                InputStream in = ps.getInputStream();
                byte[] sb = readStream(in);
                str = new String(sb, "UTF-8");
                System.out.println(str);
                in.close();
                ps.waitFor();
            } catch (Exception e) {
                e.printStackTrace();
            }
    
            System.out.println("\nchild thread done");
            return str;
        }
    
        /**
         * 把流转成字符串输出
         * @param inStream
         * @return
         * @throws Exception
         */
        public static byte[] readStream(InputStream inStream) throws Exception {
            ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
    
            byte[] buffer = new byte[1024];
            int len = -1;
    
            while ((len = inStream.read(buffer)) != -1) {
                outSteam.write(buffer, 0, len);
            }
    
            outSteam.close();
            return outSteam.toByteArray();
        }

**注意:**

若会弹出cmd框，并且不能自动关闭，则在bat文件最后加上:

> exit

[java_cmd]: https://www.cnblogs.com/sunny-sl/p/7527364.html
[java _bat_java_bat]: https://blog.csdn.net/weixin_42619742/article/details/114811762