归档-ios

/****普通对象归档**/

NSString *homePath=NSHomeDirectory();

NSString *fileName=@"test.vse";

NSString *path=[homePath stringByAppendingPathComponent:fileName];

NSArray *array=@[@"abc",@"sea",@123];

BOOL success=[NSKeyedArchiver archiveRootObject:array toFile:path];

if (success) {

NSLog(@"success");

}

/**普通对象解归档***/

NSArray *newArray=[NSKeyedUnarchiver unarchiveObjectWithFile:path];

NSLog(@"%@",newArray);

/***第二种普通对象归档方式***/

NSString *homePath2=NSHomeDirectory();

NSString *fileName2=@"test2.vse";

NSString *path2=[homePath2 stringByAppendingPathComponent:fileName2];

NSMutableData *data=[NSMutableData data];

NSKeyedArchiver *archiver=[[NSKeyedArchiver alloc] initForWritingWithMutableData:data];

NSArray *array2=@[@"abc222",@"se22a",@1233];

[archiver encodeInt:100 forKey:@"age"];

[archiver encodeObject:array2 forKey:@"name"];

[archiver finishEncoding];

BOOL success2=[data writeToFile:path2  atomically:YES];

if (success2) {

NSLog(@"success");

}

/***第二种普通对象解归档方式***/

NSData *data2=[NSData dataWithContentsOfFile:path2];

NSKeyedUnarchiver *unAchiver=[[NSKeyedUnarchiver alloc] initForReadingWithData:data2];

int age=[unAchiver decodeIntForKey:@"age"];

NSArray *name=[unAchiver decodeObjectForKey:@"name"];

NSLog(@"age=%d,name=%@",age,name);

//自定义对象归档

#import <Foundation/Foundation.h>

@interface User : NSObject <NSCoding>

@property (nonatomic,copy) NSString *name;

@property (nonatomic,copy) NSString *email;

@property (nonatomic,copy) NSString *password;

@property (nonatomic,assign) int age;

@end

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#import "User.h"

#define AGE @"age"

#define NAME @"name"

#define EMAIL @"email"

#define PASSWORD @"password"

@implementation User:NSObject

//对属性编码，归档时调用

- (void)encodeWithCoder:(NSCoder *)aCoder{

[aCoder encodeInt:_age forKey:AGE];

[aCoder encodeObject:_name  forKey:NAME];

[aCoder encodeObject:_email forKey:EMAIL];

[aCoder encodeObject:_password forKey:PASSWORD];

}

//对属性解码，解归档时调用

- (id)initWithCoder:(NSCoder *)aDecoder{

self=[super init];

if (self!=nil) {

_age=[aDecoder decodeIntForKey:AGE];

_name=[aDecoder decodeObjectForKey:NAME];

_email=[aDecoder decodeObjectForKey:EMAIL];

_password=[aDecoder decodeObjectForKey:PASSWORD];

}

return self;

}

//重写description

-(NSString *) description{

NSString *str=[NSString stringWithFormat:@"age=%d,name=%@,email=%@,password=%@",_age,_name,_email,_password];

return str;

}

@end

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/***第三种自定义对象归档方式***/

User *user=[[User alloc] init];

user.name=@"caicai";

user.age=22;

user.email=@"adf@s.com";

user.password=@"skjdsfsd";

NSString *path3=[NSHomeDirectory() stringByAppendingPathComponent:@"user.hs"];

BOOL success3=[NSKeyedArchiver archiveRootObject:user toFile:path3];

if (success3) {

NSLog(@"success");

}

/***自定义对象解归档方式***/

User *user2=[NSKeyedUnarchiver unarchiveObjectWithFile:path];

NSLog(@"%@",user2);