JSON序列化总结(纯代码)

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//

//  ViewController.m

//  JSON序列化2

//

//  Created by 潘荟 on 16/6/20.

//  Copyright © 2016年 BAT. All rights reserved.

//

#import "ViewController.h"

#import "OnePiece.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    //1.字符串

//    NSString *str = @"{\"name\":\"luffy\",\"age\":\"18\"}";

//    NSData *data = [str dataUsingEncoding:NSUTF8StringEncoding];

    //2.字典

//    NSDictionary *dic = @{@"name":@"sabo",@"age":@"19"};

//    NSData *data = [NSJSONSerialization dataWithJSONObject:dic options:0 error:NULL];

    //3.数组

//    NSArray *array = @[

//                       @{@"name":@"sanji"},

//                       @{@"age":@"23"}

//                       ];

//    NSData *data = [NSJSONSerialization dataWithJSONObject:array options:0 error:NULL];

    //4.自定义对象

//    OnePiece *op = [[OnePiece alloc] init];

//    op.name = @"luffy";

//    op.age = 23;

//    [op setValue:@(0) forKey:@"is_D"];

//    

//    if (![NSJSONSerialization isValidJSONObject:op]) {

//        NSDictionary *dic = [op dictionaryWithValuesForKeys:@[@"name",@"age"]];

//        

//        NSData *data = [NSJSONSerialization dataWithJSONObject:dic options:0 error:NULL];

//        

//        [self getJson:data];

//        

//    }else {

//        NSLog(@"不符合");

//    }

    //5.自定义多个对象

    OnePiece *op1 = [[OnePiece alloc] init];

    op1.name = @"nami";

    op1.age = 18;

    [op1 setValue:@(0) forKey:@"is_D"];

    OnePiece *op2 = [[OnePiece alloc] init];

    op2.name = @"luffy";

    op2.age = 22;

    [op2 setValue:@(1) forKey:@"is_D"];

    NSArray *array = @[op1,op2];

    NSMutableArray *marr = [NSMutableArray array];

    [array enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {

        NSDictionary *dic = [obj dictionaryWithValuesForKeys:@[@"name",@"age",@"is_D"]];

        [marr addObject:dic];

    }];

    NSData *data = [NSJSONSerialization dataWithJSONObject:marr options:0 error:NULL];

    [self getJson:data];

}

- (void)getJson:(NSData *)data {

    NSURL *url = [NSURL URLWithString:@"http://192.168.29.103/php/upload/postjson.php"];

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

    request.HTTPMethod = @"POST";

    request.HTTPBody = data;

    [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) {

        if (connectionError) {

            NSLog(@"conn error");

            return;

        }

        NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;

        if (httpResponse.statusCode == 200 || httpResponse.statusCode == 304) {

            NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

            NSLog(@"%@",string);

        }else {

            NSLog(@"server error");

        }

    }];

}

@end

JSON序列化总结(纯代码)

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原文地址：http://www.cnblogs.com/panhui/p/5601676.html