利用NSKeyedUnarchiver对象归档方式保存数据

//

//  ZSXCUserManager.h

//  zsxc

//

//  Created by hyjt on 2017/8/1.

//  Copyright © 2017年haoyungroup. All rights reserved.

//

#import<Foundation/Foundation.h>

@interfaceZSXCUserData :NSObject

@property(nonatomic,copy) NSString *userId;

@property(nonatomic,copy) NSString *devId;

@property(nonatomic,copy) NSString *orgId;

@property(nonatomic,copy) NSString *password;

@end

@interfaceZSXCUserManager :NSObject

+ (instancetype)sharedManager;

@property(nonatomic,strong)   ZSXCUserData  *currentUserData;

@end

//

//  ZSXCUserManager.m

//  zsxc

//

//  Created by hyjt on 2017/8/1.

//  Copyright © 2017年haoyungroup. All rights reserved.

//

#import"ZSXCUserManager.h"

#define ZSXCUserId      @"userId"

#define ZSXCPassword    @"password"

#define ZSXCOrgId       @"orgId"

#define ZSXCDevId       @"devId"

@interfaceZSXCUserData ()<NSCoding>

@end

@implementationZSXCUserData

- (instancetype)initWithCoder:(NSCoder*)aDecoder

{

   if (self= [superinit]) {

       _userId  = [aDecoderdecodeObjectForKey:ZSXCUserId];

       _password = [aDecoder decodeObjectForKey:ZSXCPassword];

       _orgId    = [aDecoderdecodeObjectForKey:ZSXCOrgId];

       _devId    = [aDecoderdecodeObjectForKey:ZSXCDevId];

    }

   return self;

}

- (void)encodeWithCoder:(NSCoder*)encoder

{

   if ([_userIdlength]) {

        [encoderencodeObject:_userIdforKey:ZSXCUserId];

    }

   if ([_passwordlength]) {

        [encoderencodeObject:_passwordforKey:ZSXCPassword];

    }

   if ([_orgIdlength]) {

        [encoderencodeObject:_orgIdforKey:ZSXCOrgId];

    }

   if ([_devIdlength]) {

        [encoderencodeObject:_devIdforKey:ZSXCDevId];

    }

}

@end

@interfaceZSXCUserManager ()

@property(nonatomic,copy) NSString    *filepath;

@end

@implementationZSXCUserManager

+ (instancetype)sharedManager

{

   static ZSXCUserManager *instance = nil;

   static dispatch_once_t onceToken;

   dispatch_once(&onceToken, ^{

       NSString *file = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES).firstObjectstringByAppendingPathComponent:@"ZSXCUSER.data"];

        instance = [[ZSXCUserManageralloc]initWithPath:file];

    });

   return instance;

}

- (instancetype)initWithPath:(NSString*)filepath

{

   if (self= [superinit])

    {

       _filepath = filepath;

        [selfreadData];

    }

   return self;

}

-(void)setCurrentUserData:(ZSXCUserData*)currentUserData{

   _currentUserData = currentUserData;

    [selfsaveData];

   

}

//从文件中读取和保存用户名密码

- (void)readData

{

   NSString *filepath = [selffilepath];

   if ([[NSFileManagerdefaultManager]fileExistsAtPath:filepath])

    {

       id object = [NSKeyedUnarchiverunarchiveObjectWithFile:filepath];

       _currentUserData = [object isKindOfClass:[ZSXCUserDataclass]] ? object :nil;

    }

}

//保存数据

- (void)saveData

{

   NSData *data = [NSDatadata];

   if (_currentUserData)

    {

        data = [NSKeyedArchiverarchivedDataWithRootObject:_currentUserData];

    }

    [datawriteToFile:[selffilepath]atomically:YES];

   DLog(@"%@",[selffilepath]);

}

@end