一、简介

JSON解析:

通过正则将JSON([{...},{...}...])分解成多个包含实体实例内容的一小节({...})，在一小节中通过Runtime(运行时)(<objc/runtime.h>)将实体所有属性值找到并赋值（正则查找实现）到实例({...} --> 实体的一个实例)，遍历所有小节({...})就将XML转换成NSMutableArray（类似：List<class>）。

XML 解析:

通过GDataXml（也可以通过正则）将XML分解成多个包含实体实例内容的一小节XML，在一小节中通过Runtime(运行时)(<objc/runtime.h>)将实体所有属性值找到并赋值（正则查找实现）到实例，遍历所有小节就将XML转换成NSMutableArray（类似：List<class>）。

将XML拼接，通过GDataXml将XML转换成NSMutableArray（类似：List<string>）（整个过程也可以通过正则实现）。

已将3个解析方法写到一个公用类（GlobalApplication）中

需注意的是实现方法中要添加2个头文件

#import <objc/runtime.h>
#import "GDataXMLNode.h"

使用说明：

    // User 为一个 实体类
    // xml --> NSMutableArray (List<class>)
    NSMutableArray *retVal = [GlobalApplication jsonToArray:xml class:User.class];
    // xml --> NSMutableArray (List<class>)
    NSMutableArray *retVal = [GlobalApplication xmlToArray:xml class:User.class rowRootName:@"row"];
    // xml --> NSMutableArray (List<String>)
    NSMutableArray *retVal = [GlobalApplication xmlToArray:xml];

二、代码

1、GlobalApplication.h

//
//  GlobalApplication.h
//  WebServcieBySoap
//
//  Created by fengs on 14-11-19.
//  Copyright (c) 2014年 fengs. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface GlobalApplication : NSObject

#pragma mark -
#pragma mark - 将xml(数组)转换成NSMutableArray (List<String>)
/**
 * 将xml(数组)转换成NSMutableArray
 * @param xml
     <string>fs</string>
     <string>fs</string>
     ...
 * @return NSMutableArray (List<String>)
 */
+(NSMutableArray*)xmlToArray:(NSString*)xml;

#pragma mark -
#pragma mark - 将标准的xml(实体)转换成NSMutableArray (List<class>)
/**
 * 把标准的xml(实体)转换成NSMutableArray
 * @param xml:
     <data xmlns="">
     <row><UserID>ff0f0704</UserID><UserName>fs</UserName></row>
     <row><UserID>ff0f0704</UserID><UserName>fs</UserName></row>
     ......
     </data>
 * @param class:
    User
 * @param rowRootName:
    row
 * @return NSMutableArray (List<class>)
 */
+(NSMutableArray*)xmlToArray:(NSString*)xml class:(Class)class rowRootName:rowRootName;

#pragma mark -
#pragma mark - 将标准的Json(实体)转换成NSMutableArray (List<class>)
/**
 * 把标准的xml(实体)转换成NSMutableArray
 * @param xml:
    [{"UserID":"ff0f0704","UserName":"fs"},
    {"UserID":"ff0f0704","UserName":"fs"},...]
 * @param class:
    User
 * @return NSMutableArray (List<class>)
 */
+(NSMutableArray*)jsonToArray:(NSString*)json class:(Class)class;
@end

2、GlobalApplication.m

//
//  GlobalApplication.m
//  WebServcieBySoap
//
//  Created by fengs on 14-11-19.
//  Copyright (c) 2014年 fengs. All rights reserved.
//

#import "GlobalApplication.h"
#import <objc/runtime.h>
#import "GDataXMLNode.h"

@implementation GlobalApplication

#pragma mark - 
#pragma mark - 将xml(数组)转换成NSMutableArray (List<String>)
/**
 * 将xml(数组)转换成NSMutableArray
 * @param xml
     <string>fs</string>
     <string>fs</string>
     ...
 * @return NSMutableArray (List<String>)
 */
+(NSMutableArray*)xmlToArray:(NSString*)xml{
    
    NSMutableArray *retVal = [[[NSMutableArray alloc] init] autorelease];
    xml = [NSString stringWithFormat:@"<data>%@</data>",xml];
    GDataXMLDocument *root = [[[GDataXMLDocument alloc] initWithXMLString:xml options:0 error:nil] autorelease];
    GDataXMLElement *rootEle = [root rootElement];
    for (int i=0; i <[rootEle childCount]; i++) {
        GDataXMLNode *item = [rootEle childAtIndex:i];
        [retVal addObject:item.stringValue];
    }
    return retVal;
}

#pragma mark -
#pragma mark - 将标准的xml(实体)转换成NSMutableArray (List<class>)
/**
 * 将标准的xml(实体)转换成NSMutableArray
 * @param xml:
     <data xmlns="">
     <row><UserID>ff0f0704</UserID><UserName>fs</UserName></row>
     <row><UserID>ff0f0704</UserID><UserName>fs</UserName></row>
     ......
     </data>
 * @param class:
     User
 * @param rowRootName:
     row
 * @return NSMutableArray (List<class>)
 */
+(NSMutableArray*)xmlToArray:(NSString*)xml class:(Class)class rowRootName:rowRootName{
    
    NSMutableArray *retVal = [[[NSMutableArray alloc] init] autorelease];
    GDataXMLDocument *root = [[[GDataXMLDocument alloc] initWithXMLString:xml options:0 error:nil] autorelease];
    GDataXMLElement *rootEle = [root rootElement];
    NSArray *rows = [rootEle elementsForName:rowRootName];
    for (GDataXMLElement *row in rows) {
        id object = [[class alloc] init];
        object = [self initWithXMLString:row.XMLString object:object];
        [retVal addObject:object];
        [object release];
    }
    return retVal;
}

/**
 * 将传递过来的实体赋值
 * @param xml(忽略实体属性大小写差异):
    <row><UserID>ff0f0704</UserID><UserName>fs</UserName></row>
 * @param class:
    User @property userName,userID;
 * @return class
 */
+(id)initWithXMLString:(NSString*)xml object:(id)object{
    
    unsigned int outCount, i;
    objc_property_t *properties = class_copyPropertyList([object class], &outCount);
    for (i = 0; i<outCount; i++)
    {
        objc_property_t property = properties[i];
        const char* char_f = property_getName(property);
        NSString *propertyName = [NSString stringWithUTF8String:char_f];
        NSString *value = http://www.mamicode.com/[self setXMLProperty:xml propertyName:propertyName];>

ios XML,JSON,数组解析并转换成NSMutableArray（List<class>）