%DATE% %TIME%
2021年03月11日 16:21
这里的解决那些没有抛出的500谬误
定义一个过滤器，并把级别调到最高
package com.fedtech.common.filter.response;import com.fedtech.common.util.result.R;import org.apache.commons.lang3.StringUtils;import org.springframework.core.Ordered;import org.springframework.core.annotation.Order;import org.springframework.http.MediaType;import org.springframework.stereotype.Component;import javax.servlet.*;import javax.servlet.http.HttpServletResponse;import java.io.IOException;/** * 对局部响应内容进行解决 * * @author <a href = "mailto:njpkhuan@gmail.com" > huan </a > * @date 2021/2/24 * @since 1.0.0 */@Component@Order(Ordered.HIGHEST_PRECEDENCE)public class ResponseFilter implements Filter { @Override public void init(FilterConfig filterConfig) throws ServletException { } @Override public void destroy() { } @Override public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { ResponseWrapper responseWrapper = new ResponseWrapper((HttpServletResponse) servletResponse); filterChain.doFilter(servletRequest, responseWrapper); String contentType = responseWrapper.getContentType(); byte[] content = responseWrapper.getResponseData(); String str = ""; if (StringUtils.isNotBlank(contentType) && (contentType.contains(MediaType.APPLICATION_JSON_VALUE) || contentType.contains(MediaType.TEXT_HTML_VALUE))) { str = new String(content); HttpServletResponse response = (HttpServletResponse) servletResponse; if (response.getStatus() != 200) { if (StringUtils.containsAny(str, "\"status\":\"false\"")) { writeResponse(response, response.getStatus(), str); } else { writeResponse(response, response.getStatus(), R.failedWithJsonData(str).toJson()); } } else { if (StringUtils.containsAny(str, "\"status\":\"true\"")) { writeResponse(response, response.getStatus(), str); } else { writeResponse(response, response.getStatus(), R.successWithJsonData(str).toJson()); } } } } private static void writeResponse(HttpServletResponse response, int status, String json) { try { response.setHeader("Access-Control-Allow-Origin", "*"); response.setHeader("Access-Control-Allow-Methods", "*"); response.setContentType("application/json;charset=UTF-8"); response.setStatus(status); response.getWriter().write(json); } catch (IOException e) { e.printStackTrace(); } }}对立响应解决
package com.fedtech.common.filter.response;import com.fedtech.common.util.result.R;import org.apache.commons.lang3.StringUtils;import javax.servlet.ServletOutputStream;import javax.servlet.WriteListener;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpServletResponseWrapper;import java.io.*;public class ResponseWrapper extends HttpServletResponseWrapper { private ByteArrayOutputStream buffer = null; private ServletOutputStream out = null; private PrintWriter writer = null; ResponseWrapper(HttpServletResponse resp) throws IOException { super(resp); buffer = new ByteArrayOutputStream();// 真正存储数据的流 out = new WapperedOutputStream(buffer); writer = new PrintWriter(new OutputStreamWriter(buffer)); } @Override public ServletOutputStream getOutputStream() throws IOException { return out; } @Override public PrintWriter getWriter() throws UnsupportedEncodingException { return writer; } @Override public void flushBuffer() throws IOException { if (out != null) { out.flush(); } if (writer != null) { writer.flush(); } } @Override public void reset() { buffer.reset(); } byte[] getResponseData() throws IOException { flushBuffer(); if (StringUtils.contains(buffer.toString(), "\"data\":") && StringUtils.contains(buffer.toString(), "\"code\":") && StringUtils.contains(buffer.toString(), "\"status\":")) { return buffer.toByteArray(); } ByteArrayOutputStream stream = new ByteArrayOutputStream(); stream.write(R.successWithJsonData(buffer.toString()).toJson().getBytes()); return stream.toByteArray(); } public String getContent() throws IOException { flushBuffer(); if (StringUtils.contains(buffer.toString(), "\"data\":") && StringUtils.contains(buffer.toString(), "\"code\":") && StringUtils.contains(buffer.toString(), "\"status\":")) { return buffer.toString(); } ByteArrayOutputStream stream = new ByteArrayOutputStream(); stream.write(R.successWithJsonData(buffer.toString()).toJson().getBytes()); return stream.toString(); } private class WapperedOutputStream extends ServletOutputStream { private ByteArrayOutputStream bos = null; WapperedOutputStream(ByteArrayOutputStream stream) throws IOException { bos = stream; } @Override public void write(int b) throws IOException { bos.write(b); } @Override public void write(byte[] b) throws IOException { bos.write(b, 0, b.length); } @Override public void write(byte[] b, int off, int len) throws IOException { bos.write(b, off, len); } @Override public boolean isReady() { return false; } @Override public void setWriteListener(WriteListener writeListener) { } }}本文由博客群发一文多发等经营工具平台 OpenWrite 公布