最近在用 Spring Data Rest 写WebApi 遇到Put请求后报415 Mieda Type 的错误，GG了下 找到个解决办法，下面是针对Put请求的过滤。
1 public class HttpPutRestfulContentFilter extends OncePerRequestFilter {
2
3 private Charset charset = Charset.forName("UTF-8");
4 private final String method="PUT";
5
6 @Override
7 protected void doFilterInternal(final HttpServletRequest request, HttpServletResponse response,
8 FilterChain filterChain) throws ServletException, IOException {
9
10 if (this.method.equals(request.getMethod())) {
11 HttpInputMessage inputMessage = new ServletServerHttpRequest(request) {
12 @Override
13 public InputStream getBody() throws IOException {
14 return request.getInputStream();
15 }
16 };
17
18 HttpServletRequest wrapper = new HttpMethodRequestWrapper(request, this.method);
19 filterChain.doFilter(wrapper, response);
20 }
21 else {
22 filterChain.doFilter(request, response);
23 }
24 }
25
26 private static class HttpMethodRequestWrapper extends HttpServletRequestWrapper {
27
28 private final String method;
29
30 public HttpMethodRequestWrapper(HttpServletRequest request, String method) {
31 super(request);
32 this.method = method;
33 }
34
35 @Override
36 public String getMethod() {
37 return this.method;
38 }
39 }
40 }
需要在web.xml中添加这个自定义过滤
<!--解决使用PUT请求接收不到参数的问题 -->
<filter>
<filter-name>HttpMethodFilter</filter-name>
<filter-class>org.tccsdk.core.code.filter.HttpPutRestfulContentFilter</filter-class>
</filter><filter-mapping>
<filter-name>HttpMethodFilter</filter-name>
<servlet-name>api</servlet-name>
</filter-mapping><!-- Spring child -->
<servlet>
<servlet-name>api</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>api</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
Spring Data Rest 支持Put请求