iOS另一种获取soap的方法

首先新建类WebServices

WebServices.h

#import <Foundation/Foundation.h>

@interface WebServiceHelper : NSObject

@property (nonatomic,strong) NSString *MethodName;

@property (nonatomic,strong) NSString *SoapUrlAddress;

@property (nonatomic,strong) NSMutableDictionary *MethodKeyAndValues;

@property (nonatomic,strong) NSString *XmlNameSpace;

-(NSString *)Post;

@end

WebServices.m

#import "WebServiceHelper.h"

@implementation WebServiceHelper

- (instancetype)init
{
    self = [super init];
    if (self) {
        self.SoapUrlAddress=@"http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx";
        
        self.XmlNameSpace=@"http://WebXml.com.cn/";
    }
    return self;
}

-(NSString *)Post
{
    NSString *xml=[[NSString alloc]init];
    
    NSMutableString *soapMsg=[[NSMutableString alloc]init];
    [soapMsg appendFormat:@"<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" "];
    [soapMsg appendFormat:@"xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body>"];
    [soapMsg appendFormat:@"<%@ xmlns="%@">",self.MethodName,self.XmlNameSpace];
    
    NSArray *keys=[self.MethodKeyAndValues allKeys];
    int length=[keys count];
    
    for (int i=0; i<length; i++) {
        id key=[keys objectAtIndex:i];
        id value=[self.MethodKeyAndValues objectForKey:key];
        [soapMsg appendFormat:@"<%@>%@</%@>",key,value,key];
    }
    
    [soapMsg appendFormat:@"</%@></soap:Body></soap:Envelope>",self.MethodName];
    
    NSLog(@"%@",soapMsg);
    
    NSURL *url=[NSURL URLWithString:self.SoapUrlAddress];
    
    NSMutableURLRequest *req=[NSMutableURLRequest requestWithURL:url];
    
    [req addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
    
    NSString *soapAction=[[NSString alloc]initWithFormat:@"%@%@",self.XmlNameSpace,self.MethodName];
    
    [req addValue:soapAction forHTTPHeaderField:@"SOAPAction"];
    
    NSLog(@"%@",soapAction);
    
    [req setHTTPMethod:@"POST"];
    
    [req setHTTPBody:[soapMsg dataUsingEncoding:NSUTF8StringEncoding]];
    
    NSURLResponse *response=nil;
    NSError *error=nil;
    NSData *result=[NSURLConnection sendSynchronousRequest:req returningResponse:&response error:&error];
    if (error) {
        NSLog(@"Connection Error: %@", [error description], nil);
    }
    
    xml=[[NSString alloc]initWithData:result encoding:NSUTF8StringEncoding];
    return xml;
}

@end

调用方法

WebServiceHelper *helper=[[WebServiceHelper alloc]init];
    
    helper.MethodName=@"getMobileCodeInfo";
    
    NSMutableDictionary *keyAndValues=[NSMutableDictionary dictionaryWithObjectsAndKeys:@"123456789",@"mobileCode",@"",@"userid",nil];
    
    helper.MethodKeyAndValues=keyAndValues;
    
    NSString *value=[helper Post];
    
    NSLog(@"%@",value);

 与前一个比的好处就是，不用委托了。因为是初学，大家多提意见。