作者：Dewey | 来源：互联网 | 2023-09-25 20:01
1.自定义的函数：（调用的是下面ImageIO的方法）publicstaticvoidimgResize(StringwebPicPath,StringdictFileName
1.自定义的函数：（调用的是下面ImageIO的方法）
public static void imgResize(String webPicPath,String dictFileName) throws Exception {
Image img = ImageIO.read(new URL(webPicPath));
//TODO:other
}
2.ImageIO.read(URL input)函数：
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| public static BufferedImage read(URL input) throws IOException {
if (input == null) {
throw new IllegalArgumentException("input == null!");
}
InputStream istream = null;
try {
istream = input.openStream();
} catch (IOException e) {
throw new IIOException("Can't get input stream from URL!", e);
}
ImageInputStream stream = createImageInputStream(istream);
BufferedImage bi;
try {
bi = read(stream);
if (bi == null) {
stream.close();
}
} finally {
istream.close();
}
return bi;
} |
为什么放在服务器上，在openStream的时候会报错？
报错信息："Can't get input stream from URL!"
今天本机还特意部署了跟服务器上一样的环境：apache+tomcat+JKMount
本机测试都无问题的，放在服务器上就报错了。求解
webPicPath是任意一张网络图片的路径，异常的内容： Caused by: javax.imageio.IIOException: Can't get input stream from URL! at javax.imageio.ImageIO.read(ImageIO.java:1369) at com.xxx.webapp.#.util.ImgUtil.imgCut(ImgUtil.java:265) ... 65 more Caused by: java.net.ConnectException: Connection timed out: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:529) at java.net.Socket.connect(Socket.java:478) at sun.net.NetworkClient.doConnect(NetworkClient.java:163) at sun.net.www.http.HttpClient.openServer(HttpClient.java:394) at sun.net.www.http.HttpClient.openServer(HttpClient.java:529) at sun.net.www.http.HttpClient.(HttpClient.java:233) at sun.net.www.http.HttpClient.New(HttpClient.java:306) at sun.net.www.http.HttpClient.New(HttpClient.java:323) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:975) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:916) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:841) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1177) at java.net.URL.openStream(URL.java:1010) at javax.imageio.ImageIO.read(ImageIO.java:1367) ... 67 more
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