【IPHONE开发-OBJECTC入门学习】对象的归档和解归档

转自：http://blog.csdn.net/java886o/article/details/9046967

#import <Foundation/Foundation.h>
#import "Person.h"

int main(int argc, const char * argv[])
{

    @autoreleasepool {

        //-----------第1种归档方式---------

        //1.使用NSKeyedArchiver 归档对象到文件(对象序列化,持久化)
        NSArray* arrays = [[NSArray alloc]initWithObjects:@"111",@"222", nil];

        NSString* userPath = NSHomeDirectoryForUser(@"3g2win");

        NSLog(@"userPath=%@",userPath);

        NSString* bakFilePath = [userPath stringByAppendingFormat:@"/test.txt"];

        NSLog(@"bakFilePath=%@",bakFilePath);

        NSLog(@"归档前的数组:

%@",arrays);


        //归档

        if ([NSKeyedArchiver archiveRootObject:arrays toFile:bakFilePath]){
            NSLog(@"归档成功...

");
        }else {
            NSLog(@"归档失败...

");
        }




        //2.使用NSKeyedUnarchiver 解归档文件到对象(反序列化)
        //解归档
        NSArray* srcArr =  [NSKeyedUnarchiver unarchiveObjectWithFile:bakFilePath];

        NSLog(@"解归档后的数组:

%@",srcArr);



        //------------第2种归档方式---------

        //归档
        NSMutableData* data = [NSMutableData alloc];
        NSKeyedArchiver* archiver = [NSKeyedArchiver alloc];
        [archiver initForWritingWithMutableData:data];
        [archiver encodeObject:@"张三" forKey:@"name"];
        [archiver encodeInt:25 forKey:@"age"];
        [archiver encodeFloat:5200.5F forKey:@"money"];
        [archiver finishEncoding];
        [data writeToFile:@"/Users/3g2win/11111111111.txt" atomically:YES];

        //解归档
        NSMutableData* data2 = [NSMutableData dataWithContentsOfFile:@"/Users/3g2win/11111111111.txt"];
        NSKeyedUnarchiver* unArchiver = [NSKeyedUnarchiver alloc];
        [unArchiver initForReadingWithData:data2];

        NSLog(@"name=%@",[unArchiver decodeObjectForKey:@"name"]);

        NSLog(@"age=%d",[unArchiver decodeIntForKey:@"age"]);

        NSLog(@"money=%f",[unArchiver decodeFloatForKey:@"money"]);

        //-------------自定义对象的归档和解归档------------
        Person* zhao6 = [[Person alloc] initWithName:@"赵六" withAge:18];

        [zhao6 display];

        //归档
        [NSKeyedArchiver archiveRootObject:zhao6 toFile:@"/Users/3g2win/zhao6.txt"];

        //解档

        Person* newZhao6 = [NSKeyedUnarchiver unarchiveObjectWithFile:@"/Users/3g2win/zhao6.txt"];

        [newZhao6 display];

    }
    return 0;
}

#import <Foundation/Foundation.h>
#import "Person.h"

int main(int argc, const char * argv[])
{
    
    @autoreleasepool {
        
        //-----------第1种归档方式---------
        
        //1.使用NSKeyedArchiver 归档对象到文件(对象序列化,持久化)
        NSArray* arrays = [[NSArray alloc]initWithObjects:@"111",@"222", nil];
        
        NSString* userPath = NSHomeDirectoryForUser(@"3g2win");
        
        NSLog(@"userPath=%@",userPath);
        
        NSString* bakFilePath = [userPath stringByAppendingFormat:@"/test.txt"];
        
        NSLog(@"bakFilePath=%@",bakFilePath);
        
        NSLog(@"归档前的数组:

%@",arrays);
        
        
        //归档
        
        if ([NSKeyedArchiver archiveRootObject:arrays toFile:bakFilePath]){
            NSLog(@"归档成功...

");
        }else {
            NSLog(@"归档失败...

");
        }
        
        
        
        
        //2.使用NSKeyedUnarchiver 解归档文件到对象(反序列化)
        //解归档
        NSArray* srcArr =  [NSKeyedUnarchiver unarchiveObjectWithFile:bakFilePath];
        
        NSLog(@"解归档后的数组:

%@",srcArr);
        
        
        
        //------------第2种归档方式---------
        
        //归档
        NSMutableData* data = [NSMutableData alloc];
        NSKeyedArchiver* archiver = [NSKeyedArchiver alloc];
        [archiver initForWritingWithMutableData:data];
        [archiver encodeObject:@"张三" forKey:@"name"];
        [archiver encodeInt:25 forKey:@"age"];
        [archiver encodeFloat:5200.5F forKey:@"money"];
        [archiver finishEncoding];
        [data writeToFile:@"/Users/3g2win/11111111111.txt" atomically:YES];
        
        //解归档
        NSMutableData* data2 = [NSMutableData dataWithContentsOfFile:@"/Users/3g2win/11111111111.txt"];
        NSKeyedUnarchiver* unArchiver = [NSKeyedUnarchiver alloc];
        [unArchiver initForReadingWithData:data2];
        
        NSLog(@"name=%@",[unArchiver decodeObjectForKey:@"name"]);
        
        NSLog(@"age=%d",[unArchiver decodeIntForKey:@"age"]);
        
        NSLog(@"money=%f",[unArchiver decodeFloatForKey:@"money"]);
        
        //-------------自定义对象的归档和解归档------------
        Person* zhao6 = [[Person alloc] initWithName:@"赵六" withAge:18];
        
        [zhao6 display];
        
        //归档
        [NSKeyedArchiver archiveRootObject:zhao6 toFile:@"/Users/3g2win/zhao6.txt"];
        
        //解档
        
        Person* newZhao6 = [NSKeyedUnarchiver unarchiveObjectWithFile:@"/Users/3g2win/zhao6.txt"];
        
        [newZhao6 display];
        
    }
    return 0;
}

Person.h

#import <Foundation/Foundation.h>

//必须实现NSCoding协议才能够归档解归档自定义类

@interface Person : NSObject <NSCoding>

{
    NSString* name;
    int age;
}

@property (nonatomic,assign) NSString* name;
@property (nonatomic,assign) int age;

- (id) initWithName:(NSString*) _name withAge:(int) _age;

- (void) display;


@end

#import <Foundation/Foundation.h>

//必须实现NSCoding协议才能够归档解归档自定义类

@interface Person : NSObject <NSCoding>

{
    NSString* name;
    int age;
}

@property (nonatomic,assign) NSString* name;
@property (nonatomic,assign) int age;

- (id) initWithName:(NSString*) _name withAge:(int) _age;

- (void) display;


@end

Person.m

#import "Person.h"

#define NAME @"NAME"
#define AGE @"AGE"

@implementation Person

@synthesize name;
@synthesize age;

- (id) initWithName:(NSString*) _name withAge:(int) _age {
    if (self = [super init]) {
        self.name = _name;
        self.age = _age;
    }
    return self;
}

- (void) display {
    NSLog(@"Person Name : %@	 Age :%d",name,age);
}

//归档编码
- (void)encodeWithCoder:(NSCoder *)aCoder {
    [aCoder encodeObject:name forKey:NAME];
    [aCoder encodeInt:age forKey:AGE];
}

//解归档解码
- (id)initWithCoder:(NSCoder *)aDecoder {
    if (self = [super init]) {
        self.name = [aDecoder decodeObjectForKey:NAME];
        self.age = [aDecoder decodeIntForKey:AGE];
    }
    return self;
}

@end