Apex Developer Guide

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Apex Developer Guide
Release Notes
Getting Started with Apex
Writing Apex
Running Apex
Invoking Apex
Apex Transactions and Governor Limits
Using Salesforce Features with Apex
Integration and Apex Utilities
Invoking Callouts Using Apex
JSON Support
XML Support
ZIP Support
Securing Your Data
Encoding Your Data
Using Patterns and Matchers
Debugging, Testing, and Deploying Apex
Apex Reference
Appendices
PDF

Encoding Your Data

You can encode and decode URLs and convert strings to hexadecimal format by using the methods provided by the EncodingUtil class.

This example shows how to URL encode a timestamp value in UTF-8 by calling urlEncode.

DateTime d = System.now();
String timestamp = ''+ d.year() + '-' +
    d.month() + '-' +
    d.day() + '\'T\'' +
    d.hour() + ':' +
    d.minute() + ':' +
    d.second() + '.' +
    d.millisecond() + '\'Z\'';
System.debug(timestamp);
String urlEncodedTimestamp = EncodingUtil.urlEncode(timestamp, 'UTF-8');
System.debug(urlEncodedTimestamp);

This next example shows how to use convertToHex to compute a client response for HTTP Digest Authentication (RFC2617).

@isTest
private class SampleTest {
   static testmethod void testConvertToHex() {
      String myData = 'A Test String';
      Blob hash = Crypto.generateDigest('SHA1',Blob.valueOf(myData));
      String hexDigest = EncodingUtil.convertToHex(hash);
      System.debug(hexDigest);  
    } 
}