webView 加载本地文件

 1 - (void)viewDidLoad  
 2 {  
 3     [super viewDidLoad];  
 4     [self setupUI];  
 5       
 6     NSString *path = [[NSBundle mainBundle] pathForResource:@"关于.docx" ofType:nil];  
 7     NSURL *url = [NSURL fileURLWithPath:path];  
 8     NSLog(@"%@", [self mimeType:url]);  
 9       
10       
11     //webview加载本地文件，可以使用加载数据的方式  
12     //第一个诶参数是一个NSData， 本地文件对应的数据  
13     //第二个参数是MIMEType  
14     //第三个参数是编码格式  
15     //相对地址，一般加载本地文件不使用，可以在指定的baseURL中查找相关文件。  
16       
17     //以二进制数据的形式加载沙箱中的文件，  
18     NSData *data = [NSData dataWithContentsOfFile:path];  
19       
20     [self.webView loadData:data MIMEType:@"application/vnd.openxmlformats-officedocument.wordprocessingml.document" textEncodingName:@"UTF-8" baseURL:nil];  
21 }  
22   
23 #pragma mark 加载docx文件  
24 - (void)loadDOCX  
25 {  
26       
27     NSString *path = [[NSBundle mainBundle] pathForResource:@"关于.docx" ofType:nil];  
28     NSURL *url = [NSURL fileURLWithPath:path];  
29     NSLog(@"%@", [self mimeType:url]);  
30   
31     NSData *data = [NSData dataWithContentsOfFile:path];  
32       
33     [self.webView loadData:data MIMEType:@"application/vnd.openxmlformats-officedocument.wordprocessingml.document" textEncodingName:@"UTF-8" baseURL:nil];}  
34   
35 #pragma mark 加载pdf文件  
36 - (void)loadPDF  
37 {  
38     NSString *path = [[NSBundle mainBundle] pathForResource:@"iOS6Cookbook.pdf" ofType:nil];  
39     NSURL *url = [NSURL fileURLWithPath:path];  
40     NSLog(@"%@", [self mimeType:url]);  
41       
42     NSData *data = [NSData dataWithContentsOfFile:path];  
43       
44     [self.webView loadData:data MIMEType:@"application/pdf" textEncodingName:@"UTF-8" baseURL:nil];  
45 }  
46   
47 #pragma mark 加载本地文本文件  
48 - (void)loadText  
49 {  
50     NSString *path = [[NSBundle mainBundle] pathForResource:@"关于.txt" ofType:nil];  
51     NSURL *url = [NSURL fileURLWithPath:path];  
52     NSLog(@"%@", [self mimeType:url]);  
53   
54     NSData *data = [NSData dataWithContentsOfFile:path];  
55       
56     [self.webView loadData:data MIMEType:@"text/plain" textEncodingName:@"UTF-8" baseURL:nil];  
57 }  
58   
59   
60 #pragma mark 加载本地html文件  
61 - (void)loadHTML  
62 {  
63     NSString *path = [[NSBundle mainBundle] pathForResource:@"demo.html" ofType:nil];  
64     NSURL *url = [NSURL fileURLWithPath:path];  
65     NSLog(@"%@", [self mimeType:url]);  
66       
67     NSData *data = [NSData dataWithContentsOfFile:path];  
68       
69     [self.webView loadData:data MIMEType:@"text/html" textEncodingName:@"UTF-8" baseURL:nil];  
70 }  
71   
72   
73 #pragma mark 获取指定URL的MIMEType类型  
74 - (NSString *)mimeType:(NSURL *)url  
75 {  
76     //1NSURLRequest  
77     NSURLRequest *request = [NSURLRequest requestWithURL:url];  
78     //2NSURLConnection  
79       
80     //3 在NSURLResponse里，服务器告诉浏览器用什么方式打开文件。  
81       
82     //使用同步方法后去MIMEType  
83     NSURLResponse *response = nil;  
84     [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:nil];  
85     return response.MIMEType;  
86 }