bugfix: 修复两个RequestWrapper类的头信息多次获取导致丢失的问题。

core-parent/web/src/main/java/icu/easyj/web/wrapper/ApplicationJsonHttpServletRequestWrapper.java

@@ -30,9 +30,6 @@
  */
 public class ApplicationJsonHttpServletRequestWrapper extends BodyHttpServletRequestWrapper {
 
-	private final static Enumeration<String> CONTENT_TYPE_ENUMERATION = Collections.enumeration(Collections.singletonList(MediaType.APPLICATION_JSON_VALUE));
-
-
 	public ApplicationJsonHttpServletRequestWrapper(HttpServletRequest request, String jsonData) {
 		super(request, jsonData);
 	}
@@ -55,7 +52,7 @@ public String getHeader(String name) {
 	@Override
 	public Enumeration<String> getHeaders(String name) {
 		if (HttpHeaders.CONTENT_TYPE.equalsIgnoreCase(name)) {
-			return CONTENT_TYPE_ENUMERATION;
+			return Collections.enumeration(Collections.singletonList(MediaType.APPLICATION_JSON_VALUE));
 		}
 
 		return super.getHeaders(name);

core-parent/web/src/main/java/icu/easyj/web/wrapper/BodyHttpServletRequestWrapper.java

@@ -44,7 +44,6 @@ public class BodyHttpServletRequestWrapper extends HttpServletRequestWrapper {
 
 
 	private final int contentLength;
-	private final Enumeration<String> contentLengthEnumeration;
 
 	@Nonnull
 	private ServletInputStream inputStream;
@@ -66,7 +65,6 @@ public BodyHttpServletRequestWrapper(HttpServletRequest request, String body) {
 		byte[] bodyBytes = body.getBytes(DEFAULT_CHARSET);
 
 		this.contentLength = bodyBytes.length;
-		this.contentLengthEnumeration = Collections.enumeration(Collections.singletonList(String.valueOf(contentLength)));
 		this.inputStream = new BodyServletInputStream(bodyBytes);
 	}
 
@@ -124,7 +122,7 @@ public int getIntHeader(String name) {
 	@Override
 	public Enumeration<String> getHeaders(String name) {
 		if (HttpHeaders.CONTENT_LENGTH.equalsIgnoreCase(name)) {
-			return contentLengthEnumeration;
+			return Collections.enumeration(Collections.singletonList(String.valueOf(this.contentLength)));
 		}
 
 		return super.getHeaders(name);