1     NSString * path = NSHomeDirectory();
2     NSString * filePath = [path stringByAppendingPathComponent:@"sjz.txt"];
3     //归档，这里可以是NSString、NSDate、NSArray、NSDictionary等
4     [NSKeyedArchiver archiveRootObject:@"sjz" toFile:filePath];
5
6     //反归档
7     NSString * str = [NSKeyedUnarchiver unarchiveObjectWithFile:filePath];

 1 //文件路径
 2     NSString * path = NSHomeDirectory();
 3     NSString * filePath = [path stringByAppendingPathComponent:@"sjz.txt"];
 4
 5     NSString * str = @"小明";
 6     NSString * age = @"10";
 7     NSArray * arr = [NSArray arrayWithObjects:@"123", @"456", @"789", nil];
 8     NSInteger integer = 10;
 9
10     //归档
11     NSMutableData * data = [[NSMutableData alloc] init];
12     NSKeyedArchiver * archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
13     [archiver encodeObject:str forKey:@"name"];
14     [archiver encodeObject:age forKey:@"age"];
15     [archiver encodeObject:arr forKey:@"arr"];
16     [archiver encodeInteger:integer forKey:@"integer"];
17     [archiver finishEncoding];
18     [data writeToFile:filePath atomically:YES];
19
20     //反归档
21     NSMutableData * unData = [[NSMutableData alloc] initWithContentsOfFile:filePath];
22     NSKeyedUnarchiver * unArchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:unData];
23     NSString * name = [unArchiver decodeObjectForKey:@"name"];
24     NSString * ageStr = [unArchiver decodeObjectForKey:@"age"];
25     NSArray  * array = [unArchiver decodeObjectForKey:@"arr"];
26     NSInteger intt = [unArchiver decodeIntegerForKey:@"integer"];
27     [unArchiver finishDecoding];
28
29     NSLog(@"name = %@, age = %@", name, ageStr);
30     NSLog(@"%@", array);
31     NSLog(@"%ld", intt);

1 #import <Foundation/Foundation.h>
2
3 @interface JZModel : NSObject <NSCoding>
4
5 @property (nonatomic, strong) NSString * name;
6 @property (nonatomic, assign) NSInteger age;
7 @property (nonatomic, strong) NSString * address;
8
9 @end

 1 #import "JZModel.h"
 2
 3 @implementation JZModel
 4
 5 //必须实现，归档
 6 - (void)encodeWithCoder:(NSCoder *)aCoder
 7 {
 8     [aCoder encodeObject:_name forKey:@"name"];
 9     [aCoder encodeInteger:_age forKey:@"age"];
10     [aCoder encodeObject:_address forKey:@"address"];
11 }
12
13 //必须实现，反归档
14 - (instancetype)initWithCoder:(NSCoder *)aDecoder
15 {
16     self = [super init];
17     if(self){
18         _name = [aDecoder decodeObjectForKey:@"name"];
19         _age = [aDecoder decodeIntegerForKey:@"age"];
20         _address = [aDecoder decodeObjectForKey:@"address"];
21     }
22
23     return self;
24 }
25
26
27 - (NSString *)description
28 {
29     return [NSString stringWithFormat:@"姓名：%@，年龄：%ld，地址：%@", self.name, self.age, self.address];
30 }
31
32 @end

 1 NSString * homePath = NSHomeDirectory();
 2     NSString * filePath = [homePath stringByAppendingPathComponent:@"sjz.plist"];
 3
 4     JZModel * model = [[JZModel alloc] init];
 5     model.name = @"jz";
 6     model.age = 20;
 7     model.address = @"河北大街";
 8
 9     //归档
10     NSMutableData * data = [[NSMutableData alloc] init];
11     NSKeyedArchiver * archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
12     [archiver encodeObject:model forKey:@"model"];
13     [archiver finishEncoding];
14     [data writeToFile:filePath atomically:YES];
15
16
17     //反归档
18     NSMutableData * data1 = [[NSMutableData alloc] initWithContentsOfFile:filePath];
19     NSKeyedUnarchiver * unArchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data1];
20     JZModel * model1 = [unArchiver decodeObjectForKey:@"model"];
21     [unArchiver finishDecoding];
22
23     NSLog(@"%@", model1);