如何从 php 执行 java 函数？

Question

我得到了一个具有以下结构的 .jar，可以在 php

中使用

public class encryption
{
    public static cryptio encrypt(String user, String password)
    {
        System.out.println(output);
    }

    public static cryptio decrypt(String data)
    {
        System.out.println(output);
    }
}

然后我可以使用 php 中的以下代码来访问 jar

<?php echo exec("java -jar encryption.jar 2>&1", $output); ?>

然而这当前输出 'no main manifest attribute, in encryption.jar' 我如何能够指定使用来自 php 的加密和解密函数？

Answer 1

你can't call a non-main method from a JAR file. When you receive the message you're seeing, it means that the JAR hasn't been constructed properly as a main class must be declared. I would suggest creating a wrapper JAR as per this answer.

如何从 php 执行 java 函数？

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