// 参数带中文的字符串 NSString *urlString = [NSString stringWithFormat:@"http://localhost:8080/Test/WeiboRequestServlet?test=%@",@"测试"]; // 对该字符串进行UTF-8转码 urlString= [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; // 发送请求 ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:urlString]]; [request startAsynchronous];