iOS对象序列化和反序列化

#import <Foundation/Foundation.h>   @interface WeiboUserInfo : NSObject<NSCoding> {     NSString *m_strDeviceJid;     //绑定的设备的jid     NSString *m_strDevicePwd;     //绑定的设备的password     NSString *m_strSinaJid;       //sina帐号的jid     NSString *m_strSinaPasswd;    //sina帐号密码     NSString *m_strNickName;      //sina帐号的昵称     NSString *m_strSinaBrief;         //sina个性签名           NSString *m_strAccessToken;     //sina accessToken     NSDate *m_strExpirationDate;  //accessToken 到期时间           NSData *m_imgPortraitSmall;     //头像数据（小图片）     NSData *m_imgPortraitMid;       //头像数据（中图片）     NSData *m_imgPortraitLarge;     //头像数据（大图片） }   @property (nonatomic, copy) NSString *m_strDeviceJid; @property (nonatomic, copy) NSString *m_strDevicePwd; @property (nonatomic, copy) NSString *m_strSinaJid; @property (nonatomic, copy) NSString *m_strSinaPasswd; @property (nonatomic, copy) NSString *m_strSinaBrief; @property (nonatomic, copy) NSString *m_strNickName; @property (nonatomic, copy) NSString *m_strAccessToken; @property (nonatomic, retain) NSDate *m_strExpirationDate;   @property (nonatomic, retain) NSData *m_imgPortraitSmall; @property (nonatomic, retain) NSData *m_imgPortraitMid; @property (nonatomic, retain) NSData *m_imgPortraitLarge;   @end

.m文件

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#import "WeiboUserInfo.h"   @implementation WeiboUserInfo @synthesize m_strDeviceJid;     //绑定的设备的jid @synthesize m_strDevicePwd; @synthesize m_strSinaJid;       //sina帐号的jid @synthesize m_strSinaPasswd;    //sina帐号密码 @synthesize m_strNickName;      //sina帐号的昵称 @synthesize m_strSinaBrief;   @synthesize m_strAccessToken;     //sina accessToken @synthesize m_strExpirationDate;  //accessToken 到期时间   @synthesize m_imgPortraitSmall;     //头像数据（小图片） @synthesize m_imgPortraitMid;       //头像数据（中图片） @synthesize m_imgPortraitLarge;     //头像数据（大图片）   - (void)dealloc {     [m_strDeviceJid release];     [m_strDevicePwd release];     [m_strSinaJid release];     [m_strSinaPasswd release];     [m_strNickName release];     [m_strSinaBrief release];           [m_strAccessToken release];     [m_strExpirationDate release];           [m_imgPortraitSmall release];     [m_imgPortraitMid release];     [m_imgPortraitLarge release];           [super dealloc]; }   //将对象编码(即:序列化) -(void) encodeWithCoder:(NSCoder *)aCoder {     [aCoder encodeObject:m_strDeviceJid forKey:@"m_strDeviceJid"];     [aCoder encodeObject:m_strDevicePwd forKey:@"m_strDevicePwd"];     [aCoder encodeObject:m_strSinaJid forKey:@"m_strSinaJid"];     [aCoder encodeObject:m_strSinaPasswd forKey:@"m_strSinaPasswd"];     [aCoder encodeObject:m_strNickName forKey:@"m_strNickName"];     [aCoder encodeObject:m_strSinaBrief forKey:@"m_strSinaBrief"];     [aCoder encodeObject:m_strAccessToken forKey:@"m_strAccessToken"];     [aCoder encodeObject:m_strExpirationDate forKey:@"m_strExpirationDate"];     [aCoder encodeObject:m_imgPortraitSmall forKey:@"m_imgPortraitSmall"];     [aCoder encodeObject:m_imgPortraitMid forKey:@"m_imgPortraitMid"];     [aCoder encodeObject:m_imgPortraitLarge forKey:@"m_imgPortraitLarge"]; }   //将对象解码(反序列化) -(id) initWithCoder:(NSCoder *)aDecoder {     if (self=[super init])     {         self.m_strDeviceJid =[aDecoder decodeObjectForKey:@"m_strDeviceJid"];         self.m_strDevicePwd = [aDecoder decodeObjectForKey:@"m_strDevicePwd"];         self.m_strSinaJid =[aDecoder decodeObjectForKey:@"m_strSinaJid"];         self.m_strSinaPasswd =[aDecoder decodeObjectForKey:@"m_strSinaPasswd"];         self.m_strNickName =[aDecoder decodeObjectForKey:@"m_strNickName"];         self.m_strSinaBrief =[aDecoder decodeObjectForKey:@"m_strSinaBrief"];         self.m_strAccessToken =[aDecoder decodeObjectForKey:@"m_strAccessToken"];         self.m_strExpirationDate =[aDecoder decodeObjectForKey:@"m_strExpirationDate"];         self.m_imgPortraitSmall =[aDecoder decodeObjectForKey:@"m_imgPortraitSmall"];         self.m_imgPortraitMid =[aDecoder decodeObjectForKey:@"m_imgPortraitMid"];         self.m_imgPortraitLarge =[aDecoder decodeObjectForKey:@"m_imgPortraitLarge"];     }     return (self);       }   @end

操作如#define kSinaUserInfo @"sinaBindUserInfo.plist"

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- (void)savePlist {     NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);     NSString *documentsPath = [paths objectAtIndex:0];     NSString *selfInfoPath = [documentsPath stringByAppendingPathComponent:kSinaUserInfo];           if ([[NSFileManagerdefaultManager] fileExistsAtPath:selfInfoPath])     {         NSMutableArray *mutArrRecord = [[NSMutableArray alloc] initWithContentsOfFile:selfInfoPath];         for (int i = 0; i < [mutArrRecord count]; i++)         {             NSData *dateRecord = [mutArrRecord objectAtIndex:i];             WeiboUserInfo *weiboUserInfo = [NSKeyedUnarchiver unarchiveObjectWithData:dateRecord];             if ([weiboUserInfo.m_strDeviceJid isEqualToString:[ABServices currentUserName]])             {<br>　　　　　　　　　　//移除,写入空                 [mutArrRecord removeObjectAtIndex:i];                 [mutArrRecord writeToFile:selfInfoPath atomically:YES];                 break;             }         }         [mutArrRecord release];     } } 转自：http://www.cnblogs.com/zcw-ios/articles/3429680.html