vue+springboot Request网络请求不能到达controller的问题
在前端axios请求发出后
created: function () {
const formdata = new FormData()
formdata.append('gid', 20001)
this.$http({
url: '/project/findProject',
method: 'post',
contentType: 'application/json',
data: formdata
}).then((response) => {
this.ProjectData = response.data
console.log(response.data)
})
}
后端进入filter
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
ServletRequest requestWrapper = null;
if (servletRequest instanceof HttpServletRequest) {
requestWrapper = new RequestWrapper((HttpServletRequest) servletRequest);
// System.out.println(((RequestWrapper) requestWrapper).getBody());
// do something
System.out.println("项目过滤器2通过");
System.out.println(((RequestWrapper) requestWrapper).getBody().getClass());
String []firststr = ((RequestWrapper) requestWrapper).getBody().split("\r\n");
String []str = new String[(firststr.length-1)/4];
for(int i = 0;i < str.length;i++){
for(int j = 0;j < firststr.length;j++){
if(j == 4*(i + 1) - 1)
str[i] = firststr[j];
}
}
// String []str = ((RequestWrapper) requestWrapper).getBody().split("&");
for (int i = 0;i < str.length;i++) {
String temstr = str[i].substring(str[i].indexOf("=") + 1);
if(temstr.equals("")){
// 数据条件不满足，直接返回结果
((HttpServletResponse) servletResponse).sendError(HttpServletResponse.SC_BAD_REQUEST);
// 注意：这里需要结束执行过滤器，让请求继续流转，不能直接返回
return;
}
}
}
if (requestWrapper == null) {
filterChain.doFilter(servletRequest, servletResponse);
} else {
filterChain.doFilter(requestWrapper, servletResponse);
}
}
这个filter首先使用自己重写的RequestWrapper对请求体进行包装
public class RequestWrapper extends HttpServletRequestWrapper {
/**
* 存储请求数据
*/
private String body;
public RequestWrapper(HttpServletRequest request) {
super(request);
renewBody(request);
}
/**
* 重写getInputStream方法
*
* @return
*/
@Override
public ServletInputStream getInputStream() {
final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(body.getBytes());
ServletInputStream servletInputStream = new ServletInputStream() {
@Override
public boolean isFinished() {
return false;
}
@Override
public boolean isReady() {
return false;
}
@Override
public void setReadListener(ReadListener readListener) {
}
@Override
public int read() {
return byteArrayInputStream.read();
}
};
return servletInputStream;
}
/**
* 重写getReader方法
*
* @return
*/
@Override
public BufferedReader getReader() {
return new BufferedReader(new InputStreamReader(this.getInputStream()));
}
/**
* 读取body的值
*
* @param request
*/
private void renewBody(HttpServletRequest request) {
StringBuilder stringBuilder = new StringBuilder();
BufferedReader bufferedReader = null;
try {
InputStream inputStream = request.getInputStream();
if (inputStream != null) {
bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
char[] charBuffer = new char[128];
int bytesRead = -1;
while ((bytesRead = bufferedReader.read(charBuffer)) > 0) {
stringBuilder.append(charBuffer, 0, bytesRead);
}
}
} catch (IOException ex) {
ex.printStackTrace();
} finally {
if (bufferedReader != null) {
try {
bufferedReader.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
body = stringBuilder.toString();
}
public String getBody() {
return body;
}
}
对body的数据进行处理后执行ifelse里的
filterChain.doFilter(requestWrapper, servletResponse);
但是不管我怎么调试，执行这句话之后就会报错stream closed
以下是报错日志
Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; nested exception is java.io.IOException: org.apache.tomcat.util.http.fileupload.FileUploadException: Stream closed] with root cause
以下是报错信息
java.io.IOException: Stream closed
at org.apache.catalina.connector.InputBuffer.throwIfClosed(InputBuffer.java:526) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:337) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:132) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at java.io.FilterInputStream.read(FilterInputStream.java:133) ~[na:1.8.0_211]
at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:132) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:975) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:879) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at java.io.InputStream.read(InputStream.java:101) ~[na:1.8.0_211]
at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:97) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:68) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.MultipartStream.readBodyData(MultipartStream.java:572) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.MultipartStream.discardBodyData(MultipartStream.java:596) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.MultipartStream.skipPreamble(MultipartStream.java:614) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.impl.FileItemIteratorImpl.findNextItem(FileItemIteratorImpl.java:228) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.impl.FileItemIteratorImpl.<init>(FileItemIteratorImpl.java:142) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:252) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:276) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.connector.Request.parseParts(Request.java:2932) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.connector.Request.getParts(Request.java:2834) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.connector.RequestFacade.getParts(RequestFacade.java:1098) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at javax.servlet.http.HttpServletRequestWrapper.getParts(HttpServletRequestWrapper.java:361) ~[tomcat-embed-core-9.0.65.jar:4.0.FR]
at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.parseRequest(StandardMultipartHttpServletRequest.java:95) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.<init>(StandardMultipartHttpServletRequest.java:88) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.multipart.support.StandardServletMultipartResolver.resolveMultipart(StandardServletMultipartResolver.java:122) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1209) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1043) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:964) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.23.jar:5.3.23]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) ~[tomcat-embed-core-9.0.65.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.23.jar:5.3.23]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.65.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.65.jar:9.0.65]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at com.example.springboot_structure.pipe2.ProjectFilter2.doFilter(ProjectFilter2.java:61) ~[classes/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at com.example.springboot_structure.pipe2.ProjectFilter1.doFilter(ProjectFilter1.java:31) ~[classes/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.23.jar:5.3.23]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.23.jar:5.3.23]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.23.jar:5.3.23]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1789) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) [tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.65.jar:9.0.65]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_211]
Suppressed: java.io.IOException: Stream closed
at org.apache.catalina.connector.InputBuffer.throwIfClosed(InputBuffer.java:526) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:337) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:132) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at java.io.FilterInputStream.read(FilterInputStream.java:133) ~[na:1.8.0_211]
at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:132) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:975) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.close(MultipartStream.java:919) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.close(MultipartStream.java:898) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:93) ~[tomcat-embed-core-9.0.65.jar:9.0.65]
... 62 common frames omitted
求问这是什么情况，已经改了一下午了，不知道原因，我调试时执行filterChain.doFilter(requestWrapper, servletResponse);后也进入不了controller里面，完全不知道哪里错了，有没有人帮我看一看？
问题已解决：如果你使用的是springboot 2.2.2以上的版本，那么使用我上述包装请求体的代码还是会导致流关闭，因为过滤的机制改变了
这时我们需要在配置文件里面加上
spring.mvc.hiddenmethod.filter.enabled=true
你应该打断点看下是从哪一步挂的，
例如不能直接return，是不是return导致的
参数类型传错了吧