iOS开发日志通过ftp上传的方法

在开发过程中，需要收集奔溃日志，那怎么做到奔溃日志上传呢，通常集成第三方工具，什么友盟、蒲公英、腾讯之类的统计软件，但是有的公司有要求，奔溃日志需要存放在服务器上面，本文就介绍下通过FTP搜集日志的方法：
1、实现C语言通过的的方法uncaughtExceptionHandler捕获奔溃日志， 将崩溃信息持久化在本地，下次程序启动时，将崩溃信息作为日志发送给开发者

CatchCrash.h
#import 
@interface CatchCrash : NSObject

/**
 *  异常处理函数
 *
 *  @param exception 异常对象
 */
void uncaughtExceptionHandler(NSException *exception);
@end

CatchCrash.m
void uncaughtExceptionHandler(NSException *exception){
    NSMutableString *exceptionJSON = [[NSMutableString alloc] init];
    [exceptionJSON appendString:@"{\n"];
    [exceptionJSON appendFormat:@"\t\"异常时间\":\"%@\",\n",[CatchCrash getCurrentTime]];
    [exceptionJSON appendFormat:@"\t\"用户名字\":\"%@\",\n",[KKInfoHelper readUserInfo].username];
    [exceptionJSON appendFormat:@"\t\"设备型号\":\"%@\",\n",[DeviceInfo getDeviceInfo].deviceModel];
    [exceptionJSON appendFormat:@"\t\"系统名称\":\"%@\",\n",[DeviceInfo getDeviceInfo].systemName];
    [exceptionJSON appendFormat:@"\t\"设备名称\":\"%@\",\n",[DeviceInfo getDeviceInfo].deviceName];
    [exceptionJSON appendFormat:@"\t\"系统版本\":\"%@\",\n",[DeviceInfo getDeviceInfo].systemVersion];
    [exceptionJSON appendFormat:@"\t\"应用版本\":\"%@\",\n",[[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]];
    [exceptionJSON appendFormat:@"\t\"异常名称\":\"%@\",\n",[exception name]];
    [exceptionJSON appendFormat:@"\t\"异常原因\":\"%@\",\n",[exception reason]];
    [exceptionJSON appendString:@"\t\"异常堆栈\":\n\t\""];
    for (NSString* str in [exception callStackSymbols]) {
        [exceptionJSON appendFormat:@"[%@]",str];
    }
    [exceptionJSON appendString:@"\",\n"];
    [exceptionJSON appendString:@"}"];
    [exceptionJSON writeToFile:[NSString stringWithFormat:@"%@/Documents/CrashError.log",NSHomeDirectory()] atomically:YES encoding:NSUTF8StringEncoding error:nil];
}

2、通过GoldRaccoon这个第三方ftp框架将写入本地的文件上传到服务器，

UploadCrashLog.h文件
#import 
@interface UploadCrashLog : NSObject

/**
 *  上传崩溃日志实例
 */
+ (UploadCrashLog*)getInstance;

/**
 *  开始上传崩溃日志
 */
- (void)startUpload;

@end

UploadCrashLog.m文件
#import "UploadCrashLog.h"
#import "Global.h"
#import "AppDelegate.h"
#import "KKValidate.h"
#import "GRRequestsManager.h"

@interface UploadCrashLog () {
    BOOL _connected;
}
@property (nonatomic, strong) GRRequestsManager *requestsManager;
@property (nonatomic, strong) NSString *filePath;
@end

@implementation UploadCrashLog

/**
 *  上传崩溃日志实例
 */
+ (UploadCrashLog*)getInstance {
    static UploadCrashLog *sharedInstance = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        sharedInstance = [[self alloc] init];
    });
    
    return sharedInstance;
}

/**
 *  开始上传崩溃日志
 */
- (void)startUpload {
    //[self performSelectorInBackground:@selector(uploadProcess:) withObject:nil];
    [NSThread detachNewThreadSelector:@selector(uploadProcess:) toTarget:self withObject:nil];
}

-(GRRequestsManager *)requestsManager {
    if (!_requestsManager) {
        NSString* hostName = CrashLogSFTPHostName;
        NSInteger port = CrashLogSFTPPort;
        NSString* userName = CrashLogSFTPUserName;
        NSString* password = CrashLogSFTPPassword;
        _requestsManager=[[GRRequestsManager alloc] initWithHostname:hostName user:userName password:password];
        self.requestsManager.delegate = self;
    }
    return _requestsManager;
}

- (void)uploadProcess:(id)sender {
    NSString* logRemotePath = CrashLogSFTPLogDir;
    NSString* logLocalPath = [NSString stringWithFormat:@"%@/Documents/CrashError.log",NSHomeDirectory()];
    //先判断是否有崩溃日志
    NSFileManager* fileManager = [NSFileManager defaultManager];
    BOOL isDirectory;
    BOOL isPathExist = [fileManager fileExistsAtPath:logLocalPath isDirectory:&isDirectory];
    if (!isPathExist || isDirectory) {
        return;
    }
    
    logRemotePath = [logRemotePath stringByAppendingPathComponent:[NSString stringWithFormat:@"/Stomatiology%.f.log",[[NSDate date]timeIntervalSince1970]*1000000]];
    [self.requestsManager addRequestForUploadFileAtLocalPath:logLocalPath toRemotePath:logRemotePath];
    [self.requestsManager startProcessingRequests];
}

/**
 *  获取yyyy-MM-dd HH:mm:ss格式的时间
 */
-(NSString*)getCurrentTime {
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.SSZ"];
    return [dateFormatter stringFromDate:[NSDate date]];
}


- (void)requestsManager:(id)requestsManager didCompleteUploadRequest:(id)request
{
    NSLog(@"requestsManager:didCompleteUploadRequest:%@",@"上传崩溃信息成功");
    NSFileManager* fileManager = [NSFileManager defaultManager];
    //删除本地崩溃日志文件
    NSString* logLocalPath = [NSString stringWithFormat:@"%@/Documents/CrashError.log",NSHomeDirectory()];
    [fileManager removeItemAtPath:logLocalPath error:nil];
}

- (void)requestsManager:(id)requestsManager didFailWritingFileAtPath:(NSString *)path forRequest:(id)request error:(NSError *)error
{
    NSLog(@"requestsManager:didFailWritingFileAtPath:forRequest:error: \n %@", error);
}

- (void)requestsManager:(id)requestsManager didFailRequest:(id)request withError:(NSError *)error
{
    NSLog(@"requestsManager:didFailRequest:withError: \n %@", error);
}
@end

当然也可以调用后台提供的接口，当下次开启APP将奔溃日志上传，此外还可以通过发邮件的方式将日志发送到指定邮箱。