java下载网络文件时连接超时

错误信息:
java.net.ConnectException: Connection timed out
java.net.PlainSocketImpl.socketConnect(Native Method)
java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
java.net.Socket.connect(Socket.java:529)
java.net.Socket.connect(Socket.java:478)
sun.net.NetworkClient.doConnect(NetworkClient.java:163)
sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
sun.net.www.http.HttpClient.(HttpClient.java:233)
sun.net.www.http.HttpClient.New(HttpClient.java:306)
sun.net.www.http.HttpClient.New(HttpClient.java:323)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:970)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:911)
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:836)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1172)
java.net.URL.openStream(URL.java:1010)
com.srt.ezg.eMeg.voiceMail.action.VoiceAction.voiceDownload(VoiceAction.java:189)
sun.reflect.GeneratedMethodAccessor3167.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:216)
org.apache.struts.actions.DispatchAction$$FastClassByCGLIB$$d3d27916.invoke()
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)
com.srt.ezg.eMeg.voiceMail.action.VoiceAction$$EnhancerByCGLIB$$e77a6b68.execute()
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
com.srt.vas.filter.OaFilter.doFilter(OaFilter.java:68)
com.srt.vas.filter.SetFilterEcod.doFilter(SetFilterEcod.java:25)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:359)
org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
com.srt.sdp.security.bean.CustomFilterSecurityInterceptor.invoke(CustomFilterSecurityInterceptor.java:117)
com.srt.sdp.security.bean.CustomFilterSecurityInterceptor.doFilter(CustomFilterSecurityInterceptor.java:86)
com.srt.sdp.security.bean.CustomFilterSecurityInterceptor$$FastClassByCGLIB$$2c376577.invoke()
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
com.srt.interceptor.MethodTimeAdvice.invoke(MethodTimeAdvice.java:34)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)
com.srt.sdp.security.bean.CustomFilterSecurityInterceptor$$EnhancerByCGLIB$$635d6668.doFilter()
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:67)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:116)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:173)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:271)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:271)
org.springframework.security.ui.AbstractProcessingFilter$$FastClassByCGLIB$$32042740.invoke()
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)
com.srt.sdp.security.bean.CustomAuthenticationProcessingFilter$$EnhancerByCGLIB$$3e18fe7e.doFilterHttp()
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:371)
org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:174)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)


VoiceAction.java中的下载action:

try {
request.setCharacterEncoding("UTF-8");
} catch (UnsupportedEncodingException e) {
}
String path = request.getParameter("url");// 语音文件下载地址
path = new String(path
.getBytes("ISO-8859-1"), "UTF-8");
// path="http://127.0.0.1/Ezg_v4.0/a059516000101001.wav";
int startIndex = path.lastIndexOf("/");
int endIndex = path.length();
String fileName = path.substring(startIndex + 1, endIndex);
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
OutputStream fos = null;
InputStream fis = null;
URL url = new URL(path);
try {
fis = url.openStream();//这行报错
bis = new BufferedInputStream(fis);
fos = response.getOutputStream();
bos = new BufferedOutputStream(fos);
response.setHeader("Content-disposition", "attachment;filename="
+ new String(fileName.getBytes("gb2312"), "ISO-8859-1"));
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = bis.read(buffer, 0, 8192)) != -1) {
bos.write(buffer, 0, bytesRead);
}
bos.flush();
fis.close();
bis.close();
fos.close();
bos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
}

return null;

首先,代码应该是没有问题的。
报错的位置是在fis = url.openStream()这里。
VoiceAction.java:189
请问,应该从哪里着手解决?

1个回答

1、URL url = new URL(path); 确保path正确 可以在此输出 然后到浏览器试试
2、java.net.ConnectException: Connection timed out

HttpURLConnection urlCon = (HttpURLConnection)url.openConnection();
urlCon.setConnectTimeout(30000);
urlCon.setReadTimeout(30000);

setConnectTimeout:设置连接主机超时(单位:毫秒)
setReadTimeout:设置从主机读取数据超时(单位:毫秒)

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