Call Java Method from PHP

BigZero

Hello,

can i call Java method.That is java code from php,here what i m
looking for i have class called DB in this class all the DB related
things ,like DB connection DB insert,DB read etc Methods are defined.

"All i m looking for just call the DB method from PHP that Read
data from DB".
here i m using phptriad2-2-1 that has support for java
i made changes to "php.ini" file i have added the following lines to
this file
[change]

java.class.path = .\php_java.dll
java.home = C:\Program Files\Java\jdk1.5.0_11
java.library = C:\Program Files\Java\jre1.5.0_11\bin\client\jvm.dll
java.library.path = C:\apache\php\extensions\

[/change]
her i don't have php_java.jar so i musing php_java.dll

and here is the follwing simple code.

Expand|Select|Wrap|Line Numbers

  
<HTML>

<HEAD>

<TITLE>Test for Java</TITLE>

</HEAD>

<BODY>

<?php

// get instance of Java class java.lang.System in PHP

$system = new Java('java.lang.System');   //here is the error

// demonstrate property access

echo 'Java version=' . $system->getProperty('java.version') . '<br /

                >';
 
echo 'Java vendor=' . $system->getProperty('java.vendor') . '<br />';

echo 'OS=' . $system->getProperty('os.name') . ' ' .

$system->getProperty('os.version') . ' on ' .

$system->getProperty('os.arch') . ' <br />';
 
// java.util.Date example

$formatter = new Java('java.text.SimpleDateFormat',

"EEEE, MMMM dd, yyyy 'at' h:mm:ss a zzzz");
 
echo $formatter->format(new Java('java.util.Date'));

?>

</BODY>

</HTML>

but it gives the following error in browser
[error]

Fatal error: Cannot instantiate non-existent class: java in c:\apache
\htdocs\web\phpjava.php on line 8

[/error]

some body help.

Thanks
VM

Jun 2 '08 #1

Subscribe Post Reply

11950

Erwin Moller

BigZero schreef:

Hello,

can i call Java method.That is java code from php,here what i m
looking for i have class called DB in this class all the DB related
things ,like DB connection DB insert,DB read etc Methods are defined.

"All i m looking for just call the DB method from PHP that Read
data from DB".
here i m using phptriad2-2-1 that has support for java
i made changes to "php.ini" file i have added the following lines to
this file
[change]

java.class.path = .\php_java.dll
java.home = C:\Program Files\Java\jdk1.5.0_11
java.library = C:\Program Files\Java\jre1.5.0_11\bin\client\jvm.dll
java.library.path = C:\apache\php\extensions\

Hi,

Did you try asking PHP what it thinks about the above settings?
Try a new php script, only containing:
<?php
phpinfo();
?>

Can you find the Javasection? Are the paths allright?
I am not 100% sure if PHP fixes this itself, but when using spaces in
pathnames it is wise to pass them around as a string, like:

java.home = "C:\Program Files\Java\jdk1.5.0_11"

>
[/change]
her i don't have php_java.jar so i musing php_java.dll

And you DID make sure this is said so in php.ini too?

Check what phpinfo() says first.

Regards,
Erwin Moller

>
and here is the follwing simple code.

Expand|Select|Wrap|Line Numbers

<HTML>

<HEAD>

<TITLE>Test for Java</TITLE>

</HEAD>

<BODY>

<?php

// get instance of Java class java.lang.System in PHP

$system = new Java('java.lang.System'); //here is the error

// demonstrate property access

echo 'Java version=' . $system->getProperty('java.version') . ' ';

echo 'Java vendor=' . $system->getProperty('java.vendor') . ' ';

echo 'OS=' . $system->getProperty('os.name') . ' ' .

$system->getProperty('os.version') . ' on ' .

$system->getProperty('os.arch') . ' ';

// java.util.Date example

$formatter = new Java('java.text.SimpleDateFormat',

"EEEE, MMMM dd, yyyy 'at' h:mm:ss a zzzz");

echo $formatter->format(new Java('java.util.Date'));

</BODY>

</HTML>

but it gives the following error in browser
[error]

Fatal error: Cannot instantiate non-existent class: java in c:\apache
\htdocs\web\phpjava.php on line 8

[/error]

some body help.

Thanks
VM

Jun 2 '08 #2

C. (http://symcbean.blogspot.com/)

On 9 May, 08:25, BigZero <vijaymajagaon...@gmail.comwrote:

Hello,

can i call Java method.That is java code from php,here what i m
looking for i have class called DB in this class all the DB related
things ,like DB connection DB insert,DB read etc Methods are defined.

"All i m looking for just call the DB method from PHP that Read
data from DB".

here i m using phptriad2-2-1 that has support for java
i made changes to "php.ini" file i have added the following lines to
this file
[change]

java.class.path = .\php_java.dll
java.home = C:\Program Files\Java\jdk1.5.0_11
java.library = C:\Program Files\Java\jre1.5.0_11\bin\client\jvm.dll
java.library.path = C:\apache\php\extensions\

[/change]

I'd have expected that you'd need to enable the java extension:

extension=php_java.dll

Also, I'd expect your java.class.path to point to where your jar files
live.
Similarly java.library.path should point to DLLs to be used by Java -
not DLLS to be used by PHP.

HTH

C.

Jun 2 '08 #5

BigZero

Well above thing working fine with the first code but if write my own
class in java example the following code get gives two error's as
follows
[code java]
public class hello {
public static void main(String[] args) {
//do nothing - this will keep us from getting a compile error
}
public String SayHello() {
Date today = new Date();
return "Hello Geek here is the java date and time: " + today;
}

public int SayNumber(){
int mynum = 0;
for(int i=1;i<=5;i++){
mynum =+ (int)(Math.random()*100);
}
return mynum;
}
}
[/code java]
[code php]
<?php
//java_require("C:\\apache\\htdocs\\web\\");
$obj = new Java("hello");
// Call the "sayHello()" method
$output = $obj->SayHello();
echo $output.' this text in PHP '; // Displays (so this comes
from the class!)
// Call the "SayNumber()" method
$output = $obj->SayNumber();
// Displays (so this comes from the class!)
echo $output.' is a lucky number';
//Because the JVM caches everything we want reset while playing with
the code. Otherwise the
// a cached version of the same class file will be used rather than
the new one
echo " Resetting back-end to initial state\n";
// suppress the warning message from the use of reset.
@java_reset();

?>
[/code php]
well this code gives two error's
[error]

Warning: java.lang.ClassNotFoundException: hello in c:\apache\htdocs
\web\javaphp.php on line 7

Fatal error: Call to a member function on a non-object in c:\apache
\htdocs\web\javaphp.php on line 9
[/error]

Can some body plz help to solve this thing,
Thanks
VM

Jun 2 '08 #9

Jerry Stuckle

BigZero wrote:

Well above thing working fine with the first code but if write my own
class in java example the following code get gives two error's as
follows
[code java]
public class hello {
public static void main(String[] args) {
//do nothing - this will keep us from getting a compile error
}
public String SayHello() {
Date today = new Date();
return "Hello Geek here is the java date and time: " + today;
}

public int SayNumber(){
int mynum = 0;
for(int i=1;i<=5;i++){
mynum =+ (int)(Math.random()*100);
}
return mynum;
}
}
[/code java]
[code php]
<?php
//java_require("C:\\apache\\htdocs\\web\\");
$obj = new Java("hello");
// Call the "sayHello()" method
$output = $obj->SayHello();
echo $output.' this text in PHP '; // Displays (so this comes
from the class!)
// Call the "SayNumber()" method
$output = $obj->SayNumber();
// Displays (so this comes from the class!)
echo $output.' is a lucky number';
//Because the JVM caches everything we want reset while playing with
the code. Otherwise the
// a cached version of the same class file will be used rather than
the new one
echo " Resetting back-end to initial state\n";
// suppress the warning message from the use of reset.
@java_reset();

?>
[/code php]
well this code gives two error's
[error]

Warning: java.lang.ClassNotFoundException: hello in c:\apache\htdocs
\web\javaphp.php on line 7

Fatal error: Call to a member function on a non-object in c:\apache
\htdocs\web\javaphp.php on line 9
[/error]

Can some body plz help to solve this thing,
Thanks
VM

I've never tried the Java integration - but I suspect the java_require()
statement must point at a .jar or .class file, not a directory.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================

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