实现Hessian Web服务

Question

Hi I am trying to create a web service using hessian but I can't seem to have any luck in implementing even the most basic example.

This is my client

<?php
include_once './Hessian/HessianClient.php';
$testurl = 'http://localhost/HessianPHP/server.php';
$proxy = new HessianClient($testurl);

    echo $proxy->div(2,5); 

?>

And this is my server code:

<?php
include_once 'Hessian/HessianService.php';
$service = new HessianService(new Math());
$service->handle();
?>

class Math {
function add($n1,$n2) {        
    return $n1+$n2;    
  }    
  function sub($n1,$n2) {        
    return $n1-$n2;    
  }    
  function mul($n1,$n2) {        
    return $n1*$n2;    
  }    
  function div($n1,$n2) {        
    return $n1/$n2;    
  }
}

When I run this code I get this error:

Fatal error: Uncaught exception 'HessianFault' with message 'Code not recognized as a top element' in E:\Program Files\xampp\htdocs\HessianPHP\Hessian\Hessian2\Hessian2ServiceParser.php:38 Stack trace: #0 E:\Program Files\xampp\htdocs\HessianPHP\Hessian\HessianClient.php(74): Hessian2ServiceParser->parseTop() #1 E:\Program Files\xampp\htdocs\HessianPHP\Hessian\HessianClient.php(111): HessianClient->_hessianCall('div', Array) #2 E:\Program Files\xampp\htdocs\HessianPHP\client.php(5): HessianClient->_call('div', Array) #3 E:\Program Files\xampp\htdocs\HessianPHP\client.php(5): HessianClient->div(2, 5) #4 {main} thrown in E:\Program Files\xampp\htdocs\HessianPHP\Hessian\Hessian2\Hessian2ServiceParser.php on line 38

What am I doing wrong here?

Answer 1

index.php ( client )

<?php

    require_once 'HessianPHP/src/HessianClient.php';

    $testurl = 'http://path/to/mathservice.php' ;
    $proxy = &new HessianClient($testurl);

    try{

        echo '<pre>';
        print_r($proxy->add(1 , 3));
        echo '</pre>';

    } catch (Exception $ex){
        echo 'Exception: ' . $ex->getMessage();
    }

server ( mathservice.php )

<?php

include_once 'HessianPHP/src/HessianService.php';
include_once 'Math.php';

$service = new HessianService(new Math());
$service->handle();

Math.php

<?php

class Math{
    function add($n1,$n2) {
        return $n1+$n2;
    }
    function sub($n1,$n2) {
        return $n1-$n2;
    }
    function mul($n1,$n2) {
        return $n1*$n2;
    }
    function div($n1,$n2) {
        return $n1/$n2;
    }
}

Hope it helps. I think there is some syntax error in your code ( the way you write Math class without php tags is weird ). If u r getting blank screen then check your log file ( error.log ) .