ios crash日志上传服务器

• 首先在- (BOOL)application:(UIApplication *)application
  didFinishLaunchingWithOptions:(NSDictionary *)launchOptions中添加这句：

NSSetUncaughtExceptionHandler(&UncaughtExceptionHandler);

• 然后在AppDelegate中添加方法：

void UncaughtExceptionHandler(NSException *exception){
    NSArray *callStackArr = [exception callStackSymbols];
    NSString *reason = [exception reason];
    NSString *name = [exception name];
    NSMutableString *strSymbols = [NSMutableString string];
    
    for (int i = 0; i < callStackArr.count; i ++) {
        [strSymbols appendString:callStackArr[i]];
        [strSymbols appendString:@"\r\n"];
    }
    
    UIDevice *device = [UIDevice currentDevice];
    NSString *deInfo = [NSString stringWithFormat:@"%@,%@%@",
                        device.model,device.systemName,device.systemVersion];
    
    NSString *filePath = [NSHomeDirectory()
                          stringByAppendingPathComponent:@"Library/Caches/ExceptionLog"];
    NSString *crashString = [NSString stringWithFormat:@"DeviceInfo:%@\nExceptionName:%@\nExceptionReason:%@\nExceptionCallStackInfo:%@",deInfo,name,reason,strSymbols];
    [crashString writeToFile:filePath atomically:YES encoding:NSUTF8StringEncoding error:nil];
    NSLog(@"崩溃详情CRASH: %@", exception);
    NSLog(@"崩溃详情Stack Trace: %@",[exception callStackSymbols]);
    [[CrashLogSender shareInstance] sendCrashLog:crashString];
}

• 其中CrashLogSender是发送请求的单例，代码如下：

@implementation CrashLogSender
+ (instancetype)shareInstance{
    static CrashLogSender *crashLog;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        crashLog = [[CrashLogSender alloc] init];
    });
    return crashLog;
}
// 通过post 或者 get 方式来将异常信息发送到服务器
- (void)sendCrashLog:(NSString *)crashLogDic {
    dispatch_semaphore_t semophore = dispatch_semaphore_create(0); // 创建信号量
    NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:nil delegateQueue:nil];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"你的上传日志的地址"]];
    [request setHTTPMethod:@"POST"];
    NSString *requestString = [NSString stringWithFormat:@"machine_code=11111111&crash_log=%@",crashLogDic];
    request.HTTPBody = [requestString dataUsingEncoding:NSUTF8StringEncoding];
    [[session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        NSLog(@"response%@",response);
        dispatch_semaphore_signal(semophore); // 发送信号

    }] resume];
    dispatch_semaphore_wait(semophore, DISPATCH_TIME_FOREVER); // 等待
}

• 这个过程中遇到个问题，由于我集成有bugly，所以刚开始的时候UncaughtExceptionHandler方法一直没有调用，后来发现我设置NSSetUncaughtExceptionHandler(&UncaughtExceptionHandler)是在bugly设置的之前，可能是bugly覆盖了（有空查下bugly实现原理），所以改成先让bugly设置，然后设置NSSetUncaughtExceptionHandler(&UncaughtExceptionHandler)即可。
• 参考的有别人的代码，忘记出处了，见谅
• 还有一种方法是崩溃的时候把崩溃信息存本地，然后下次进app的时候判断本地数据是否存在，存在就上传，成功后删除即可。