iOS开发 解决Xcode9的Log日志无法输出中文的问题

问题描述

Xcode的Log日志输出中文的问题,一般都是重写NSArray,NSDictionary的- (NSString *)descriptionWithLocale:(id)locale;方法进行处理,最近升级到Xcode9会后发现原来的处理逻辑也无法满足输出中文的需求,后台返回的状态描述涉及到中文的都变成了Unicode编码,其实这是重写的方法失效的问题,因为Xcode默认输出NSArray,NSDictionary的中文都是Unicode编码

正确的解决方案如下,
创建NSArray+ZYLog分类

NSArray+ZYLog.h文件

////  NSArray+ZYLog.h//  ZYLog////  Created by zhouyu on 17/11/08.//  Copyright © 2017年 zhouyu. All rights reserved.//#import <Foundation/Foundation.h>@interface NSArray (ZYLog)@end@interface NSDictionary (ZYLog)@end

NSArray+ZYLog.m文件

////  NSArray+ZYLog.m//  ZYLog////  Created by zhouyu on 17/11/08.//  Copyright © 2017年 zhouyu. All rights reserved.//#import "NSArray+ZYLog.h"@implementation NSArray (ZYLog)#ifdef DEBUG- (NSString *)description {    return [self ZY_descriptionWithLevel:1];}-(NSString *)descriptionWithLocale:(id)locale{    return [self ZY_descriptionWithLevel:1];}- (NSString *)descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {    return [self ZY_descriptionWithLevel:(int)level];}/** 将数组转化成字符串，文字格式UTF8,并且格式化 @param level 当前数组的层级，最少为 1，代表最外层 @return 格式化的字符串 */- (NSString *)ZY_descriptionWithLevel:(int)level {    NSString *subSpace = [self ZY_getSpaceWithLevel:level];    NSString *space = [self ZY_getSpaceWithLevel:level - 1];    NSMutableString *retString = [[NSMutableString alloc] init];    // 1、添加 [    [retString appendString:[NSString stringWithFormat:@"["]];    // 2、添加 value    [self enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        if ([obj isKindOfClass:[NSString class]]) {            NSString *value = (NSString *)obj;            value = [value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];            NSString *subString = [NSString stringWithFormat:@"\n%@\"%@\",", subSpace, value];            [retString appendString:subString];        } else if ([obj isKindOfClass:[NSArray class]]) {            NSArray *arr = (NSArray *)obj;            NSString *str = [arr ZY_descriptionWithLevel:level + 1];            str = [NSString stringWithFormat:@"\n%@%@,", subSpace, str];            [retString appendString:str];        } else if ([obj isKindOfClass:[NSDictionary class]]) {            NSDictionary *dic = (NSDictionary *)obj;            NSString *str = [dic descriptionWithLocale:nil indent:level + 1];            str = [NSString stringWithFormat:@"\n%@%@,", subSpace, str];            [retString appendString:str];        } else {            NSString *subString = [NSString stringWithFormat:@"\n%@%@,", subSpace, obj];            [retString appendString:subString];        }    }];    if ([retString hasSuffix:@","]) {        [retString deleteCharactersInRange:NSMakeRange(retString.length-1, 1)];    }    // 3、添加 ]    [retString appendString:[NSString stringWithFormat:@"\n%@]", space]];    return retString;}/** 根据层级，返回前面的空格占位符 @param level 层级 @return 占位空格 */- (NSString *)ZY_getSpaceWithLevel:(int)level {    NSMutableString *mustr = [[NSMutableString alloc] init];    for (int i=0; i<level; i++) {        [mustr appendString:@"\t"];    }    return mustr;}#endif@end@implementation NSDictionary (ZYLog)#ifdef DEBUG- (NSString *)description {    return [self ZY_descriptionWithLevel:1];}- (NSString *)descriptionWithLocale:(nullable id)locale {    return [self ZY_descriptionWithLevel:1];}- (NSString *)descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {    return [self ZY_descriptionWithLevel:(int)level];}/** * 非字典时，会引发崩溃 */- (NSString *)ZY_getUTF8String {    if ([self isKindOfClass:[NSDictionary class]] == NO) {        return @"";    }    NSError *error = nil;    NSData *data = [NSJSONSerialization dataWithJSONObject:self options:NSJSONWritingPrettyPrinted error:&error];    if (error) {        return @"";    }    NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];    return str;}/** 将字典转化成字符串，文字格式UTF8,并且格式化 @param level 当前字典的层级，最少为 1，代表最外层字典 @return 格式化的字符串 */- (NSString *)ZY_descriptionWithLevel:(int)level {    NSString *subSpace = [self ZY_getSpaceWithLevel:level];    NSString *space = [self ZY_getSpaceWithLevel:level - 1];    NSMutableString *retString = [[NSMutableString alloc] init];    // 1、添加 {    [retString appendString:[NSString stringWithFormat:@"{"]];    // 2、添加 key : value;    [self enumerateKeysAndObjectsUsingBlock:^(id  _Nonnull key, id  _Nonnull obj, BOOL * _Nonnull stop) {        if ([obj isKindOfClass:[NSString class]]) {            NSString *value = (NSString *)obj;            value = [value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];            NSString *subString = [NSString stringWithFormat:@"\n%@\"%@\" : \"%@\",", subSpace, key, value];            [retString appendString:subString];        } else if ([obj isKindOfClass:[NSDictionary class]]) {            NSDictionary *dic = (NSDictionary *)obj;            NSString *str = [dic ZY_descriptionWithLevel:level + 1];            str = [NSString stringWithFormat:@"\n%@\"%@\" : %@,", subSpace, key, str];            [retString appendString:str];        } else if ([obj isKindOfClass:[NSArray class]]) {            NSArray *arr = (NSArray *)obj;            NSString *str = [arr descriptionWithLocale:nil indent:level + 1];            str = [NSString stringWithFormat:@"\n%@\"%@\" : %@,", subSpace, key, str];            [retString appendString:str];        } else {            NSString *subString = [NSString stringWithFormat:@"\n%@\"%@\" : %@,", subSpace, key, obj];            [retString appendString:subString];        }    }];    if ([retString hasSuffix:@","]) {        [retString deleteCharactersInRange:NSMakeRange(retString.length-1, 1)];    }    // 3、添加 }    [retString appendString:[NSString stringWithFormat:@"\n%@}", space]];    return retString;}/** 根据层级，返回前面的空格占位符 @param level 字典的层级 @return 占位空格 */- (NSString *)ZY_getSpaceWithLevel:(int)level {    NSMutableString *mustr = [[NSMutableString alloc] init];    for (int i=0; i<level; i++) {        [mustr appendString:@"\t"];    }    return mustr;}#endif@end

效果

而且直接就是json串,复制log日志,直接在json格式化工具中使用

参考

JLLogEncoding