如何从Java执行PHP脚本？

要从Java执行PHP脚本，您可以使用以下方法之一：

使用Java的Runtime类：

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class JavaExecutePHP {
    public static void main(String[] args) {
        try {
            ProcessBuilder processBuilder = new ProcessBuilder("php", "your_php_script.php");
            Process process = processBuilder.start();
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }
            process.waitFor();
            reader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

使用Java的ProcessBuilder类：

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class JavaExecutePHP {
    public static void main(String[] args) {
        try {
            ProcessBuilder processBuilder = new ProcessBuilder("php", "your_php_script.php");
            Process process = processBuilder.start();
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }
            process.waitFor();
            reader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

使用Java的HttpURLConnection类：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class JavaExecutePHP {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://your_php_script_url.php");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }
            reader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

请注意，这些方法仅适用于本地和局域网环境中的PHP脚本。如果您需要从Java应用程序访问远程PHP脚本，请确保您的应用程序具有访问远程服务器的权限，并且远程服务器已正确配置以接受跨域请求。