写这个笔记之前，我也参考了一些文章，主要是在http://www.cocoachina.com/这个网站上搜索资料。
webService大家可以看一个教程：
http://www.cnblogs.com/hoojo/archive/2011/03/16/1985160.html谢谢这位博主对我提供的帮助。
下面是我的webService代码：
package com.xiva.service;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.context.ServiceContext;
public class LoginService {
public boolean login(String userName, String password) {
MessageContext context = MessageContext.getCurrentMessageContext();
ServiceContext ctx = context.getServiceContext();
if ("admin".equals(userName) && "123456".equals(password)) {
ctx.setProperty("userName", userName);
ctx.setProperty("password", password);
ctx.setProperty("msg", "登陆成功");
return true;
}
ctx.setProperty("msg", "登陆失败");
return false;
}
public String getLoginMessage() {
MessageContext context = MessageContext.getCurrentMessageContext();
ServiceContext ctx = context.getServiceContext();
return ctx.getProperty("userName") + "#" + ctx.getProperty("msg");
}
}
安装前面提到的博客文章，发布好这个Service.
下面就是在iPhone上的调用了。
先把代码给出，我们再一个一个分析。
//
// SOAPDemoViewController.h
// SOAPDemo
//
// Created by xiang xiva on 11-4-4.
// Copyright 2011 __MyCompanyName__. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface SOAPDemoViewController : UIViewController <NSXMLParserDelegate>{
IBOutlet UITextField *nameInput;
IBOutlet UILabel *greeting;
NSMutableData *webData;
NSMutableString *soapResults;
NSXMLParser *xmlParser;
BOOL recordResults;
}
@property(nonatomic, retain) IBOutlet UITextField *nameInput;
@property(nonatomic, retain) IBOutlet UILabel *greeting;
@property(nonatomic, retain) NSMutableData *webData;
@property(nonatomic, retain) NSMutableString *soapResults;
@property(nonatomic, retain) NSXMLParser *xmlParser;
-(IBAction)buttonClick: (id) sender;
- (void)loginSOAP;
@end
//
// SOAPDemoViewController.m
// SOAPDemo
//
// Created by xiang xiva on 11-4-4.
// Copyright 2011 __MyCompanyName__. All rights reserved.
//
#import "SOAPDemoViewController.h"
@implementation SOAPDemoViewController
@synthesize greeting, nameInput, webData, soapResults, xmlParser;
/*
// The designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
*/
/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
}
*/
/*
- (void)viewDidLoad {
[super viewDidLoad];
}
*/
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
-(IBAction)buttonClick:(id)sender
{
greeting.text = @"Getting time …";
[nameInput resignFirstResponder];
[self loginSOAP];
}
#pragma mark -
#pragma mark webService Data
-(void)loginSOAP{
recordResults = NO;
//封装soap请求消息
NSString *soapMessage = [NSString stringWithFormat:
@"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
"<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" soap:encodingStyle=\"http://www.w3.org/2001/12/soap-encoding\">\n"
"<soap:Body>\n"
"<login xmlns=\"http://service.xiva.com\">\n"
"<userName>admin"
"</userName>"
"<password>123456"
"</password>"
"</login>\n"
"</soap:Body>\n"
"</soap:Envelope>\n"
];
NSLog(@"%a",soapMessage);
//请求发送到的路径
NSURL *url = [NSURL URLWithString:@"http://192.168.0.64:8080/axis2/services/LoginService"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMessage length]];
//以下对请求信息添加属性前四句是必有的，第五句是soap信息。
[theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
[theRequest addValue: @"http://service.xiva.com/login" forHTTPHeaderField:@"SOAPAction"];
[theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"];
[theRequest setHTTPMethod:@"POST"];
[theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];
//请求
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
//如果连接已经建好，则初始化data
if( theConnection )
{
webData = [[NSMutableData data] retain];
}
else
{
NSLog(@"theConnection is NULL");
}
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[webData setLength: 0];
NSLog(@"connection: didReceiveResponse:1");
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[webData appendData:data];
NSLog(@"connection: didReceiveData:%a", [webData length]);
}
//如果电脑没有连接网络，则出现此信息（不是网络服务器不通）
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
NSLog(@"ERROR with theConenction");
[connection release];
[webData release];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(@"3 DONE. Received Bytes: %d", [webData length]);
NSString *theXML = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];
NSLog(@"%a",theXML);
[theXML release];
//重新加載xmlParser
if( xmlParser )
{
[xmlParser release];
}
xmlParser = [[NSXMLParser alloc] initWithData: webData];
[xmlParser setDelegate: self];
[xmlParser setShouldResolveExternalEntities: YES];
[xmlParser parse];
[connection release];
//[webData release];
}
-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *) namespaceURI qualifiedName:(NSString *)qName
attributes: (NSDictionary *)attributeDict
{
NSLog(@"4 parser didStarElemen: namespaceURI: attributes:");
if( [elementName isEqualToString:@"soap:Fault"])
{
if(!soapResults)
{
soapResults = [[NSMutableString alloc] init];
}
recordResults = YES;
}
}
-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
NSLog(@"5 parser: foundCharacters:");
NSLog(@"recordResults:%@",string);
if( recordResults )
{
[soapResults appendString: string];
}
}
-(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
NSLog(@"6 parser: didEndElement:");
if( [elementName isEqualToString:@"ns:return"])
{
NSLog(@"MSG");
}
if( [elementName isEqualToString:@"getOffesetUTCTimeResult"])
{
recordResults = FALSE;
greeting.text = [[[NSString init]stringWithFormat:@"第%@时区的时间是: ",nameInput.text] stringByAppendingString:soapResults];
[soapResults release];
soapResults = nil;
NSLog(@"hoursOffset result");
}
}
- (void)parserDidStartDocument:(NSXMLParser *)parser{
NSLog(@"-------------------start--------------");
}
- (void)parserDidEndDocument:(NSXMLParser *)parser{
NSLog(@"-------------------end--------------");
}
- (void)dealloc {
[super dealloc];
}
@end
在iPhone你直接创建一个视图应用即可。
既然集成了NSXMLParserDelegate的协议，那么我们便可使用这个协议上的方法。
关于connection的方法和xml的方法在此不用多说了；看看方法名大家就知道用途了。
第一个难点：
[theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];
这句话中的soapMessage的拼接。
NSString *soapMessage = [NSString stringWithFormat: @"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" soap:encodingStyle=\"http://www.w3.org/2001/12/soap-encoding\">\n" "<soap:Body>\n" "<login xmlns=\"http://service.xiva.com\">\n" "<userName>admin" "</userName>" "<password>123456" "</password>" "</login>\n" "</soap:Body>\n" "</soap:Envelope>\n" ];
除了下面这段代码，其他都是一些系统设置，
"<login xmlns=\"http://service.xiva.com\">\n"
"<userName>admin"
"</userName>"
"<password>123456"
"</password>"
"</login>\n"
上面代码中第一行的login，代表我们要调用的方法；xmlns中存放的是命名空间，http://service.xiva.com
service.xiva.com就是java中我们包位置的颠倒。
第二，三行代码我们给login传递一个叫userName的参数，值为admin
第四，五行代码我们给login传递一个叫password的参数，值为123456
第二个难点：
NSURL *url = [NSURL URLWithString:@"http://192.168.0.64:8080/axis2/services/LoginService"]; NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url]; NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMessage length]]; //以下对请求信息添加属性前四句是必有的，第五句是soap信息。 [theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"]; [theRequest addValue: @"http://service.xiva.com/login" forHTTPHeaderField:@"SOAPAction"]; [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"]; [theRequest setHTTPMethod:@"POST"]; [theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];
首先url，是指我们调用该方法的地址，
第二行初始化一个request给我们的connection调用，
第三行和第七行我们在设置内容的长度
第四行，是注释
第五行，设置http内容的type
第六行，是设置我们soapAction；也就是我们webService调用的方法，命名空间/方法名
第八行设置http的发送方式，为post。（不知道用get会怎么样？）
第九行设置整个Body的内容，也就是我们之前拼接的那个soapMessage。
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