【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:\n\n%@",arrays);
//归档
if ([NSKeyedArchiver archiveRootObject:arrays toFile:bakFilePath]){
NSLog(@"归档成功...\n\n");
}else {
NSLog(@"归档失败...\n\n");
}
//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:\n\n%@",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:\n\n%@",arrays);

        //归档

        if ([NSKeyedArchiver archiveRootObject:arrays toFile:bakFilePath]){

            NSLog(@"归档成功...\n\n");

        }else {

            NSLog(@"归档失败...\n\n");

        }

        //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:\n\n%@",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 : %@\t 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

【IPHONE开发-OBJECTC入门学习】对象的归档和解归档的相关教程结束。