Question

使用SQLitePersistence类将数据插入数据库时，我无法弄清楚应用崩溃的原因。

从webservice下载产品xml数据后，我试图将所有产品详细信息插入各种表中，如

Product 
Product_image
Product_option
Product_categories
Product_custom_option

就目前而言，我们在网络服务上提供了800种产品，未来可能会增加约2000种产品。

我的问题：在插入400到450个产品后，应用会定期崩溃。然后我将@autorelesepool用于将数据插入数据库的每个循环。它会增加500到550个产品然后应用程序崩溃，我可以做些什么来避免应用程序崩溃？

我的产品表SQLitePersistence文件的.h数据库类：

#import <Foundation/Foundation.h>
#import "SQLitePersistentObject.h"

@interface iMobDB : SQLitePersistentObject
{
    NSString *sku;
    NSString *name;
    .....
    .....
}
@property(nonatomic,retain) NSString *sku;
@property(nonatomic,retain) NSString *name;
.....
.....
@end

.m档案

@implementation iMobDB

@synthesize sku;
@synthesize name;
    .....
    .....

-(void) dealloc
{
    for (NSString *one in [[self class] propertiesWithEncodedTypes])
    {
        [self removeObserver:self forKeyPath:one];
    }
    iMobReleaseNil(sku);
    iMobReleaseNil(name);
    .....
    .....
}

我在Appdelegate类

中插入数据

 /*===================================== Save Product Information ===============================================*/

        iMobDB *imobdb = [[iMobDB alloc]init];
        imobdb.productId = [productid intValue];
        imobdb.sku = skukey;
        imobdb.name = namekey;
        imobdb.optionalOption = [NSString stringWithFormat:@"%d",options];
        imobdb.requriedOption = [NSString stringWithFormat:@"%d",requried];
        imobdb.productType = producttypekey;
        imobdb.price = pricekey;
        imobdb.specialprice = specialpricekey;
        imobdb.stock = [stock intValue];
        imobdb.manufacture = manukey;
        [imobdb save];
        imobdb=nil;

        /*==============================================================================================================*/

        /*==================================== Save Product Images =====================================================*/
       __unsafe_unretained NSDictionary  *imagearray=[[dict objectForKey:@"images"] objectForKey:@"url"];

        @autoreleasepool 
        {

        for (NSDictionary *dict in imagearray)
        {
            if ([dict  isKindOfClass:[NSArray class]])
            {
                NSString *imageurl=[dict objectForKey:@"text"];                
                ImageDB *imagedb = [[ImageDB alloc] init];
                imagedb.productId = [productid intValue];
                imagedb.imageurl = imageurl;
                [imagedb save];
                imagedb=nil;
            }
            else if([dict  isKindOfClass:[NSDictionary class]])
            {
                NSString *imageurl=[dict objectForKey:@"text"];              
                ImageDB *imagedb = [[ImageDB alloc] init];
                imagedb.productId = [productid intValue];
                imagedb.imageurl = imageurl;
                [imagedb save];
                imagedb=nil;
            }
        }

        }
        /*===============================================================================================================*/

        /*==================================== Save Category ============================================================*/
        @autoreleasepool 
        {

      __unsafe_unretained  NSDictionary *categorydict = [dict objectForKey:@"categories"];

                for (NSDictionary *dictt in catedict)
                {
                 __unsafe_unretained   NSString *categoryid=[[dictt objectForKey:@"categoryId"]objectForKey:@"text"];
                __unsafe_unretained    NSString *categoryname=[[dictt objectForKey:@"categoryName"]objectForKey:@"text"];                    
                    Categories *catdb  = [[Categories alloc] init];
                    catdb.categoryId = [categoryid intValue];
                    catdb.categoryname = categoryname;
                    catdb.productId = [productid intValue];
                    [catdb save];
                    catdb=nil;
                }
            }

请注意：我已在以下课程中禁用ARC

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错误日志屏幕截图

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错误日志

Feb 1 11:53:59 Innoppl-iPod backboardd [52]：iMob [2811]有超出允许时间的主动断言：{（ identifier：挂起进程：iMob [2811] allowedBackgroundDuration：10.000000 reason：suspend 所有者pid：52 preventSuspend preventThrottleDownCPU preventThrottleDownUI）} 2月1日11:53:59 Innoppl-iPod backboardd [52] ：强制iMob崩溃报告[2811] ... 2月1日11:53:59 Innoppl-iPod backboardd [52]：完成崩溃报告。二月 1 11:53:59 Innoppl-iPod ReportCrash [2819]：libMobileGestalt copySystemVersionDictionaryValue：无法从中查找ReleaseType 系统版字典2月1日11:53:59 Innoppl-iPod com.apple.launchd 1 （UIKitApplication：com.innoppl.Saletab [0xe1bf] [2811]）：（UIKitApplication：com.innoppl.Saletab [0xe1bf]）已退出：已杀：2月9日 1 11:53:59 Innoppl-iPod backboardd [52]：应用程序 'UIKitApplication：com.innoppl.Saletab [0xe1bf]'异常退出信号9：被杀：9月1日11:53:59 Innoppl-iPod ReportCrash [2819] ：保存的crashreport到 /var/mobile/Library/Logs/CrashReporter/iMob_2013-02-01-115359_Innoppl-iPod.plist 使用uid：0 gid：0，synthetic_euid：501 egid：0

SQLite Persistence类的ARC内存问题

0 个答案: