我正在将图片从图库转换为 base64，然后将其上传到“webServices.asmx”。图像在服务器上损坏，还是我的错？我不知道。我尝试将字符串放入：' http ://www.freeformatter.com/base64-encoder.html '并解码字符串并获得正确的图像。
我的代码：
// HTTP POST
NSURL *url = [NSURL URLWithString:@""];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
[httpClient setDefaultHeader:@"Content-Type" value:@"application/x-www-form-urlencoded"];
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
[NSString stringWithFormat:@"%d", userID], @"userID",
self.imageBase64, @"file",
nil];
[httpClient postPath:@"http://www....../webServices.asmx/saveImageIOS" parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSString *responseString = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
NSLog(@"\nResponse XML: \n%@", responseString);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error: %@", error.localizedDescription);
}];
示例 base64 字符串（转换后的图像）：
/9j/4AAQSkZJRgABAQAAAQABAAD/4QBYRXhpZgAATU0AKgAAAAgAAgESAAMAAAABAAEAAIdpAAQAAAABAAAAJgAAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAABQKADAAQAAAABAAABCAAAAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAEIAUADASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwD6pooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooo6UAFBoyOPekLDn1FACkZFIwyMVG8qxAtKwVfeuJ174laLYTPbWcpvr1TgwRgqR+JGKAO5PK8YJFJn5lwM7uCRXl0vjLxLdFmtdMjsYlXJ8/Df+gtT/hL4y1DxLqGuW2oPCXs2UKYlKr95h0J9qAPTQgRVA6dKkHSmg5A7jrmnDkUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFB6HNJu5IPGO9IWH6UANJwpJHA6YrF8T+JNP0CzMt5IDKeEhU5Zm7cdfSofGnieDw1ost3KpknJ2wwL96Q5HA5Hbn8K8qt4rnVrxdT15hJcn/VRjJRO3IOeeBjFAFnVLzWfGEzf2nKLXSM5WzGMyjtlsBl4P6Vf0uyttOjVLOLylHARiSR+fNSjcdqFEC/3sc1JIy2i+dPl1UcF+SaAOf8AHmspp+lyWyyhrqRSnGOhB5qr+zsHXUtalI4lCAn1IL5rkvFU0mo3b3LqFX7qjuB716R8B7D7PpUsp6yyMMnrwTQB7KOBj8KcOlNIP65pwoAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAaRkbWPWqmp30en2dxdXJCQQozsSewGatMcNuONoryP45axJ5VlocE21rmVfMAPJjOQ2fzoA5qW/m8XeJZ9WuwVs4GMVonYgE4ft1U966GEGbbuGP7vvWPphgsbS3gDoVhUKMHqAMc1qQ6jEqgQDce27tQBrALBHunIx2rmtYunvZPKztiXoauXJknO6ZiB2ANYWrTCGB/mwP1oA5zWgZrmC1gGXmcKQO2eK93+H2mfYNJto9uCEGfrivK/h9osup6r/acyHYpG0Y46g17vpkQigUAY+tAGhRR0ooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooPSmlvoT6UAOopobIyQwpQSenT3oAWim7wTgc/Slzj3oAWimbjnkMP5UuTjn/wAdoAjuDiNwenWvlv4l6lJqfxFvXVji2xEg9AVU19PXzbbaT7/Ir5QuUM/izUZSGLGVc+oG0UAbXh2zlkbdK7EH1NdvZW0cMXzDnrWDpUqQxrkHA/vVPfa9Eh8uEeZKeijmgDQ1G7jgQux4HSubsbG517VB1Fup/P8AzirmnaPea7dhrwSRw54jUdfzr1Xw34eis41CROgUelAFrwtokdlZrHGAoHoK6hUAAA7DFRxxBQAuR9al9u9AC0U1iQOQT9KM8DrQA6imbwOmW+lOBoAWiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKax6+o6UAOoqEMW5PD9lNcB8R/iZpvhGHyFP2rVJOEghw5zx1G4HuKAO+vLmG1t3luJFRFGSScV5r4q+MXh/RGMNoXv7rtFGrL/49txXllxD4k8bXH2jxLevDp7fOlipIXHYEEZ6EjrXRaRoGnaVEBa2yBvpQBKPip4u1Yn+y9BFlEejSypJ/hVa41Px9dnzDqlpaZ5wbcN/Jq2l3bckKPpThQBgEeOmAb/hKbLI/hFiRn/x6pYNZ8facd/2i2vQPSNUz+bVt0UAUrX4x6vpVwE8TeH3SHvcxzKQf+AqCfSvSvC/jzQ/EcKyWN4u4/8ALNgVI/MCuAcRupRlznqCODWDqng7TL1zLbRC2uD/AMtE4oA97vW8y2O1wQ44wM188694H1JPEmoXVtIBDM4xx0+UD19qm0+78b+Fz5Npfrqdr/ClwzHavYDaB/kVqnx7rDrsn0ANKOpjhcj+dAGdZeDbx0UTXhz6BT/jXRWug6bpEf2i9lXK/wATN0/Cufu/EPi/Uh5Wn2kGmoesrK6N/UVVi8Gm6cT6/ 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编辑： 问题出在服务器端，目前已修复，我的代码非常好（即使重复的用户 ID，我删除了）。:)