替换"inappropriate blocking method call"代码

pig-gateway/src/main/java/com/pig4cloud/pig/gateway/filter/ValidateCodeGatewayFilter.java

@@ -32,6 +32,7 @@ import lombok.SneakyThrows;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.cloud.gateway.filter.GatewayFilter;
 import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
+import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
@@ -83,13 +84,18 @@ public class ValidateCodeGatewayFilter extends AbstractGatewayFilterFactory {
 				ServerHttpResponse response = exchange.getResponse();
 				response.setStatusCode(HttpStatus.PRECONDITION_REQUIRED);
 				response.getHeaders().setContentType(MediaType.APPLICATION_JSON);
+
+				return response.writeWith(Mono.create(monoSink -> {
 					try {
-					return response.writeWith(Mono.just(response.bufferFactory()
-						.wrap(objectMapper.writeValueAsBytes(
-							R.failed(e.getMessage())))));
-				} catch (JsonProcessingException e1) {
-					log.error("对象输出异常", e1);
+						byte[] bytes = objectMapper.writeValueAsBytes(R.failed(e.getMessage()));
+						DataBuffer dataBuffer = response.bufferFactory().wrap(bytes);
+
+						monoSink.success(dataBuffer);
+					} catch (JsonProcessingException jsonProcessingException) {
+						log.error("对象输出异常", jsonProcessingException);
+						monoSink.error(jsonProcessingException);
 					}
+				}));
 			}
 
 			return chain.filter(exchange);

pig-gateway/src/main/java/com/pig4cloud/pig/gateway/handler/ImageCodeHandler.java

@@ -22,7 +22,8 @@ import com.google.code.kaptcha.Producer;
 import com.pig4cloud.pig.common.core.constant.CommonConstants;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.core.io.ByteArrayResource;
+import org.springframework.core.io.buffer.DefaultDataBuffer;
+import org.springframework.core.io.buffer.DefaultDataBufferFactory;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
@@ -53,6 +54,23 @@ public class ImageCodeHandler implements HandlerFunction<ServerResponse> {
 
 	@Override
 	public Mono<ServerResponse> handle(ServerRequest serverRequest) {
+		return ServerResponse
+			.status(HttpStatus.OK)
+			.contentType(MediaType.IMAGE_JPEG)
+			.body(BodyInserters.fromDataBuffers(Mono.create(monoSink -> {
+				try {
+					byte[] bytes = createCodeImage(serverRequest);
+					DefaultDataBuffer dataBuffer = new DefaultDataBufferFactory().wrap(bytes);
+
+					monoSink.success(dataBuffer);
+				} catch (IOException e) {
+					log.error("ImageIO write err", e);
+					monoSink.error(e);
+				}
+			})));
+	}
+
+	private byte[] createCodeImage(ServerRequest serverRequest) throws IOException {
 		//生成验证码
 		String text = producer.createText();
 		BufferedImage image = producer.createImage(text);
@@ -63,16 +81,7 @@ public class ImageCodeHandler implements HandlerFunction<ServerResponse> {
 
 		// 转换流信息写出
 		FastByteArrayOutputStream os = new FastByteArrayOutputStream();
-		try {
 		ImageIO.write(image, "jpeg", os);
-		} catch (IOException e) {
-			log.error("ImageIO write err", e);
-			return Mono.error(e);
-		}
-
-		return ServerResponse
-			.status(HttpStatus.OK)
-			.contentType(MediaType.IMAGE_JPEG)
-			.body(BodyInserters.fromResource(new ByteArrayResource(os.toByteArray())));
+		return os.toByteArray();
 	}
 }