HTTP Status 405 - Request method 'GET' not supported？（尚硅谷 - ToB企服应用市场:ToB评测及商务社交产业平台

1 public class HiddenHttpMethodFilter extends OncePerRequestFilter {
2 private static final List<String> ALLOWED_METHODS;
3 public static final String DEFAULT_METHOD_PARAM = "_method";
4 private String methodParam = "_method";
5
6 public HiddenHttpMethodFilter() {
7 }
8
9 public void setMethodParam(String methodParam) {
10 Assert.hasText(methodParam, "'methodParam' must not be empty");
11 this.methodParam = methodParam;
12 }
13
14 protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
15 HttpServletRequest requestToUse = request;
16 if ("POST".equals(request.getMethod()) && request.getAttribute("javax.servlet.error.exception") == null) {
17 String paramValue = request.getParameter(this.methodParam);
18 if (StringUtils.hasLength(paramValue)) {
19 String method = paramValue.toUpperCase(Locale.ENGLISH);
20 if (ALLOWED_METHODS.contains(method)) {
21 requestToUse = new HiddenHttpMethodFilter.HttpMethodRequestWrapper(request, method);
22 }
23 }
24 }
25
26 filterChain.doFilter((ServletRequest)requestToUse, response);
27 }
28
29 static {
30 ALLOWED_METHODS = Collections.unmodifiableList(Arrays.asList(HttpMethod.PUT.name(), HttpMethod.DELETE.name(), HttpMethod.PATCH.name()));
31 }
32
33 private static class HttpMethodRequestWrapper extends HttpServletRequestWrapper {
34 private final String method;
35
36 public HttpMethodRequestWrapper(HttpServletRequest request, String method) {
37 super(request);
38 this.method = method;
39 }
40
41 public String getMethod() {
42 return this.method;
43 }
44 }
45 }

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