Merge branch '2020.0' into feature_2020_restTemplate

.github/workflows/junit_test.yml

@@ -5,24 +5,47 @@ name: Test with Junit
 
 on:
   push:
-    branches: [ 2020.0 ]
+    branches:
+      - main
+      - 2021.0
+      - 2020.0
+      - greenwich
   pull_request:
-    branches: [ 2020.0 ]
+    branches:
+      - main
+      - 2021.0
+      - 2020.0
+      - greenwich
 
 jobs:
   build:
+    strategy:
+      matrix:
+        java: [ 8, 11, 17 ]
+        os: [ 'windows-latest', 'macos-latest', 'ubuntu-latest' ]
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
 
     steps:
     - name: Checkout codes
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
-    - name: Set up JDK 8
+    - name: Set up JDK ${{ matrix.java }}
-      uses: actions/setup-java@v2
+      uses: actions/setup-java@v3
       with:
-        java-version: '8'
+        distribution: 'temurin'
-        distribution: 'adopt'
+        java-version: ${{ matrix.java }}
+    - name: Cache local Maven repository
+      uses: actions/cache@v3
+      with:
+        path: ~/.m2/repository
+        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          ${{ runner.os }}-maven-
 #    - name: Build with Maven
 #      run: mvn -B package --file pom.xml
     - name: Test with Maven
       run: mvn -B test --file pom.xml
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v3
+      with:
+        file: '**/target/site/jacoco/jacoco.xml'

CHANGELOG.md

@@ -6,3 +6,7 @@
 - [Feature: Add config module unit test](https://github.com/Tencent/spring-cloud-tencent/pull/255)
 - [Upgrade: fix third-party lib CVEs & upgrade core spring libs version](https://github.com/Tencent/spring-cloud-tencent/pull/258)
 - [feat:support reading configuration from application.yml or application.properties.](https://github.com/Tencent/spring-cloud-tencent/pull/261)
+- [change the way from escape to encode in 2020.0](https://github.com/Tencent/spring-cloud-tencent/pull/257)
+- [fix:fix ClassNotFoundException while not importing openfeign when using circuit-breaker module.](https://github.com/Tencent/spring-cloud-tencent/pull/270)
+- [fix:solve the chaos code problem on rejectTips](https://github.com/Tencent/spring-cloud-tencent/pull/283)
+- [fix:solve ratelimit-callee-service UnknownHostException.](https://github.com/Tencent/spring-cloud-tencent/pull/291)

pom.xml

@@ -95,7 +95,7 @@
 		<spring.framework.version>5.3.21</spring.framework.version>
 
 		<!-- Maven Plugin Versions -->
-		<jacoco.version>0.8.3</jacoco.version>
+		<jacoco.version>0.8.8</jacoco.version>
 		<maven-source-plugin.version>3.2.0</maven-source-plugin.version>
 		<flatten-maven-plugin.version>1.2.7</flatten-maven-plugin.version>
 		<maven-gpg-plugin.version>3.0.1</maven-gpg-plugin.version>

spring-cloud-starter-tencent-polaris-circuitbreaker/src/main/java/com/tencent/cloud/polaris/circuitbreaker/config/PolarisFeignClientAutoConfiguration.java

@@ -25,6 +25,7 @@ import com.tencent.polaris.factory.api.DiscoveryAPIFactory;
 
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.cloud.openfeign.FeignAutoConfiguration;
 import org.springframework.context.annotation.Bean;
@@ -41,6 +42,7 @@ import static org.springframework.core.Ordered.HIGHEST_PRECEDENCE;
  */
 @ConditionalOnProperty(value = "spring.cloud.polaris.circuitbreaker.enabled", havingValue = "true", matchIfMissing = true)
 @Configuration(proxyBeanMethods = false)
+@ConditionalOnClass(name = "org.springframework.cloud.openfeign.FeignAutoConfiguration")
 @AutoConfigureAfter(PolarisContextAutoConfiguration.class)
 @AutoConfigureBefore(FeignAutoConfiguration.class)
 public class PolarisFeignClientAutoConfiguration {

spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/listener/ConfigChangeListenerTest.java

@@ -66,7 +66,7 @@ public class ConfigChangeListenerTest {
 				Sets.newHashSet("timeout"));
 
 		applicationEventPublisher.publishEvent(event);
-
+		Thread.sleep(200);
 		//after change
 		Assert.assertEquals(2, testConfig.getChangeCnt());
 		Assert.assertEquals(2000, testConfig.getTimeout());

spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/filter/QuotaCheckReactiveFilter.java

@@ -55,7 +55,7 @@ import static com.tencent.cloud.polaris.ratelimit.constant.RateLimitConstant.LAB
 /**
  * Reactive filter to check quota.
  *
- * @author Haotian Zhang, lepdou
+ * @author Haotian Zhang, lepdou, cheese8
  */
 public class QuotaCheckReactiveFilter implements WebFilter, Ordered {
 
@@ -106,7 +106,7 @@ public class QuotaCheckReactiveFilter implements WebFilter, Ordered {
 			if (quotaResponse.getCode() == QuotaResultCode.QuotaResultLimited) {
 				ServerHttpResponse response = exchange.getResponse();
 				response.setRawStatusCode(polarisRateLimitProperties.getRejectHttpCode());
-				response.getHeaders().setContentType(MediaType.APPLICATION_JSON);
+				response.getHeaders().setContentType(MediaType.TEXT_HTML);
 				DataBuffer dataBuffer = response.bufferFactory().allocateBuffer()
 						.write(rejectTips.getBytes(StandardCharsets.UTF_8));
 				return response.writeWith(Mono.just(dataBuffer));

spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/filter/QuotaCheckServletFilter.java

@@ -53,7 +53,7 @@ import static com.tencent.cloud.polaris.ratelimit.constant.RateLimitConstant.LAB
 /**
  * Servlet filter to check quota.
  *
- * @author Haotian Zhang, lepdou
+ * @author Haotian Zhang, lepdou, cheese8
  */
 @Order(RateLimitConstant.FILTER_ORDER)
 public class QuotaCheckServletFilter extends OncePerRequestFilter {
@@ -99,6 +99,7 @@ public class QuotaCheckServletFilter extends OncePerRequestFilter {
 
 			if (quotaResponse.getCode() == QuotaResultCode.QuotaResultLimited) {
 				response.setStatus(polarisRateLimitProperties.getRejectHttpCode());
+				response.setContentType("text/html;charset=UTF-8");
 				response.getWriter().write(rejectTips);
 				return;
 			}

spring-cloud-starter-tencent-polaris-ratelimit/src/test/java/com/tencent/cloud/polaris/ratelimit/filter/QuotaCheckReactiveFilterTest.java

@@ -65,7 +65,7 @@ import static org.mockito.Mockito.when;
 /**
  * Test for {@link QuotaCheckReactiveFilter}.
  *
- * @author Haotian Zhang
+ * @author Haotian Zhang, cheese8
  */
 @RunWith(MockitoJUnitRunner.class)
 @SpringBootTest(classes = QuotaCheckReactiveFilterTest.TestApplication.class, properties = {
@@ -118,7 +118,7 @@ public class QuotaCheckReactiveFilterTest {
 		});
 
 		PolarisRateLimitProperties polarisRateLimitProperties = new PolarisRateLimitProperties();
-		polarisRateLimitProperties.setRejectRequestTips("RejectRequestTips");
+		polarisRateLimitProperties.setRejectRequestTips("RejectRequestTips提示消息");
 		polarisRateLimitProperties.setRejectHttpCode(419);
 
 		RateLimitRuleLabelResolver rateLimitRuleLabelResolver = mock(RateLimitRuleLabelResolver.class);
@@ -138,7 +138,7 @@ public class QuotaCheckReactiveFilterTest {
 		try {
 			Field rejectTips = QuotaCheckReactiveFilter.class.getDeclaredField("rejectTips");
 			rejectTips.setAccessible(true);
-			assertThat(rejectTips.get(quotaCheckReactiveFilter)).isEqualTo("RejectRequestTips");
+			assertThat(rejectTips.get(quotaCheckReactiveFilter)).isEqualTo("RejectRequestTips提示消息");
 		}
 		catch (NoSuchFieldException | IllegalAccessException e) {
 			fail("Exception encountered.", e);

spring-cloud-starter-tencent-polaris-ratelimit/src/test/java/com/tencent/cloud/polaris/ratelimit/filter/QuotaCheckServletFilterTest.java

@@ -65,7 +65,7 @@ import static org.mockito.Mockito.when;
 /**
  * Test for {@link QuotaCheckServletFilter}.
  *
- * @author Haotian Zhang
+ * @author Haotian Zhang, cheese8
  */
 @RunWith(MockitoJUnitRunner.class)
 @SpringBootTest(classes = QuotaCheckServletFilterTest.TestApplication.class, properties = {
@@ -77,6 +77,8 @@ public class QuotaCheckServletFilterTest {
 
 	private QuotaCheckServletFilter quotaCheckServletFilter;
 
+	private QuotaCheckServletFilter quotaCheckWithHtmlRejectTipsServletFilter;
+
 	private static MockedStatic<ApplicationContextAwareUtils> mockedApplicationContextAwareUtils;
 	private static MockedStatic<ExpressionLabelUtils> expressionLabelUtilsMockedStatic;
 	@BeforeClass
@@ -87,7 +89,6 @@ public class QuotaCheckServletFilterTest {
 		mockedApplicationContextAwareUtils = Mockito.mockStatic(ApplicationContextAwareUtils.class);
 		mockedApplicationContextAwareUtils.when(() -> ApplicationContextAwareUtils.getProperties(anyString()))
 				.thenReturn("unit-test");
-
 	}
 
 	@AfterClass
@@ -118,13 +119,18 @@ public class QuotaCheckServletFilterTest {
 		});
 
 		PolarisRateLimitProperties polarisRateLimitProperties = new PolarisRateLimitProperties();
-		polarisRateLimitProperties.setRejectRequestTips("RejectRequestTips");
+		polarisRateLimitProperties.setRejectRequestTips("RejectRequestTips提示消息");
 		polarisRateLimitProperties.setRejectHttpCode(419);
 
+		PolarisRateLimitProperties polarisRateLimitWithHtmlRejectTipsProperties = new PolarisRateLimitProperties();
+		polarisRateLimitWithHtmlRejectTipsProperties.setRejectRequestTips("<h1>RejectRequestTips提示消息</h1>");
+		polarisRateLimitWithHtmlRejectTipsProperties.setRejectHttpCode(419);
+
 		RateLimitRuleLabelResolver rateLimitRuleLabelResolver = mock(RateLimitRuleLabelResolver.class);
 		when(rateLimitRuleLabelResolver.getExpressionLabelKeys(anyString(), anyString())).thenReturn(Collections.EMPTY_SET);
 
 		this.quotaCheckServletFilter = new QuotaCheckServletFilter(limitAPI, labelResolver, polarisRateLimitProperties, rateLimitRuleLabelResolver);
+		this.quotaCheckWithHtmlRejectTipsServletFilter = new QuotaCheckServletFilter(limitAPI, labelResolver, polarisRateLimitWithHtmlRejectTipsProperties, rateLimitRuleLabelResolver);
 	}
 
 	@Test
@@ -133,7 +139,16 @@ public class QuotaCheckServletFilterTest {
 		try {
 			Field rejectTips = QuotaCheckServletFilter.class.getDeclaredField("rejectTips");
 			rejectTips.setAccessible(true);
-			assertThat(rejectTips.get(quotaCheckServletFilter)).isEqualTo("RejectRequestTips");
+			assertThat(rejectTips.get(quotaCheckServletFilter)).isEqualTo("RejectRequestTips提示消息");
+		}
+		catch (NoSuchFieldException | IllegalAccessException e) {
+			fail("Exception encountered.", e);
+		}
+		quotaCheckWithHtmlRejectTipsServletFilter.init();
+		try {
+			Field rejectTips = QuotaCheckServletFilter.class.getDeclaredField("rejectTips");
+			rejectTips.setAccessible(true);
+			assertThat(rejectTips.get(quotaCheckWithHtmlRejectTipsServletFilter)).isEqualTo("<h1>RejectRequestTips提示消息</h1>");
 		}
 		catch (NoSuchFieldException | IllegalAccessException e) {
 			fail("Exception encountered.", e);
@@ -201,8 +216,11 @@ public class QuotaCheckServletFilterTest {
 			MetadataContext.LOCAL_SERVICE = "TestApp3";
 			quotaCheckServletFilter.doFilterInternal(request, response, filterChain);
 			assertThat(response.getStatus()).isEqualTo(419);
-			assertThat(response.getContentAsString()).isEqualTo("RejectRequestTips");
+			assertThat(response.getContentAsString()).isEqualTo("RejectRequestTips提示消息");
 
+			quotaCheckWithHtmlRejectTipsServletFilter.doFilterInternal(request, response, filterChain);
+			assertThat(response.getStatus()).isEqualTo(419);
+			assertThat(response.getContentAsString()).isEqualTo("RejectRequestTips提示消息");
 
 			// Exception
 			MetadataContext.LOCAL_SERVICE = "TestApp4";

spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/PolarisRouterServiceInstanceListSupplier.java

@@ -17,6 +17,9 @@
 
 package com.tencent.cloud.polaris.router;
 
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -27,7 +30,6 @@ import java.util.Map;
 import com.tencent.cloud.common.metadata.MetadataContext;
 import com.tencent.cloud.common.metadata.MetadataContextHolder;
 import com.tencent.cloud.common.pojo.PolarisServiceInstance;
-import com.tencent.cloud.common.util.ExpressionLabelUtils;
 import com.tencent.cloud.common.util.JacksonUtils;
 import com.tencent.cloud.polaris.loadbalancer.LoadBalancerUtils;
 import com.tencent.cloud.polaris.router.config.PolarisMetadataRouterProperties;
@@ -66,7 +68,7 @@ import org.springframework.util.CollectionUtils;
  * And {@link PolarisRouterServiceInstanceListSupplier#get(Request)} provides the ability to pass in http headers,
  * so routing capabilities are implemented through IRule.
  *
- * @author Haotian Zhang, lepdou
+ * @author Haotian Zhang, lepdou, cheese8
  */
 public class PolarisRouterServiceInstanceListSupplier extends DelegatingServiceInstanceListSupplier {
 
@@ -123,19 +125,15 @@ public class PolarisRouterServiceInstanceListSupplier extends DelegatingServiceI
 		routerContext.setLabels(PolarisRouterContext.TRANSITIVE_LABELS, MetadataContextHolder.get()
 				.getFragmentContext(MetadataContext.FRAGMENT_TRANSITIVE));
 
-		labelHeaderValues.forEach(labelHeaderValue -> {
+		Map<String, String> labelHeaderValuesMap = new HashMap<>();
-			Map<String, String> labels = JacksonUtils.deserialize2Map(labelHeaderValue);
+		try {
-			if (!CollectionUtils.isEmpty(labels)) {
+			String labelHeaderValuesContent = labelHeaderValues.stream().findFirst().get();
-				Map<String, String> unescapeLabels = new HashMap<>(labels.size());
+			labelHeaderValuesMap.putAll(JacksonUtils.deserialize2Map(URLDecoder.decode(labelHeaderValuesContent, StandardCharsets.UTF_8.name())));
-				for (Map.Entry<String, String> entry : labels.entrySet()) {
-					String escapedKey = ExpressionLabelUtils.unescape(entry.getKey());
-					String escapedValue = ExpressionLabelUtils.unescape(entry.getValue());
-					unescapeLabels.put(escapedKey, escapedValue);
 		}
-				routerContext.setLabels(PolarisRouterContext.RULE_ROUTER_LABELS, unescapeLabels);
+		catch (UnsupportedEncodingException e) {
+			throw new RuntimeException("unsupported charset exception " + StandardCharsets.UTF_8.name());
 		}
-		});
+		routerContext.setLabels(PolarisRouterContext.RULE_ROUTER_LABELS, labelHeaderValuesMap);
-
 		return routerContext;
 	}
 

spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/RouterLabelFeignInterceptor.java

@@ -18,6 +18,9 @@
 
 package com.tencent.cloud.polaris.router.feign;
 
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -28,7 +31,6 @@ import java.util.Set;
 import com.tencent.cloud.common.metadata.MetadataContext;
 import com.tencent.cloud.common.metadata.MetadataContextHolder;
 import com.tencent.cloud.common.metadata.config.MetadataLocalProperties;
-import com.tencent.cloud.common.util.ExpressionLabelUtils;
 import com.tencent.cloud.common.util.JacksonUtils;
 import com.tencent.cloud.polaris.router.RouterConstants;
 import com.tencent.cloud.polaris.router.RouterRuleLabelResolver;
@@ -45,6 +47,7 @@ import org.springframework.util.CollectionUtils;
  * Resolver labels from request.
  *
  * @author lepdou 2022-05-12
+ * @author cheese8 2022-06-20
  */
 public class RouterLabelFeignInterceptor implements RequestInterceptor, Ordered {
 	private static final Logger LOGGER = LoggerFactory.getLogger(RouterLabelFeignInterceptor.class);
@@ -102,22 +105,20 @@ public class RouterLabelFeignInterceptor implements RequestInterceptor, Ordered
 				.getFragmentContext(MetadataContext.FRAGMENT_TRANSITIVE);
 		labels.putAll(transitiveLabels);
 
-		// Because when the label is placed in RequestTemplate.header,
-		// RequestTemplate will parse the header according to the regular, which conflicts with the expression.
-		// Avoid conflicts by escaping.
-		Map<String, String> escapeLabels = new HashMap<>(labels.size());
-		for (Map.Entry<String, String> entry : labels.entrySet()) {
-			String escapedKey = ExpressionLabelUtils.escape(entry.getKey());
-			String escapedValue = ExpressionLabelUtils.escape(entry.getValue());
-			escapeLabels.put(escapedKey, escapedValue);
-		}
-
 		// pass label by header
-		if (escapeLabels.size() == 0) {
+		if (labels.size() == 0) {
 			requestTemplate.header(RouterConstants.ROUTER_LABEL_HEADER);
 			return;
 		}
-		requestTemplate.header(RouterConstants.ROUTER_LABEL_HEADER, JacksonUtils.serialize2Json(escapeLabels));
+
+		String encodedLabelsContent;
+		try {
+			encodedLabelsContent = URLEncoder.encode(JacksonUtils.serialize2Json(labels), StandardCharsets.UTF_8.name());
+		}
+		catch (UnsupportedEncodingException e) {
+			throw new RuntimeException("unsupported charset exception " + StandardCharsets.UTF_8.name());
+		}
+		requestTemplate.header(RouterConstants.ROUTER_LABEL_HEADER, encodedLabelsContent);
 	}
 
 	private Map<String, String> getRuleExpressionLabels(RequestTemplate requestTemplate, String peerService) {

spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/resttemplate/PolarisLoadBalancerInterceptor.java

@@ -19,7 +19,10 @@
 package com.tencent.cloud.polaris.router.resttemplate;
 
 import java.io.IOException;
+import java.io.UnsupportedEncodingException;
 import java.net.URI;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -53,6 +56,7 @@ import org.springframework.util.CollectionUtils;
  * Parses the label from the request and puts it into the RouterContext for routing.
  *
  * @author lepdou 2022-05-18
+ * @author cheese8 2022-06-20
  */
 public class PolarisLoadBalancerInterceptor extends LoadBalancerInterceptor {
 	private static final Logger LOGGER = LoggerFactory.getLogger(PolarisLoadBalancerInterceptor.class);
@@ -126,22 +130,19 @@ public class PolarisLoadBalancerInterceptor extends LoadBalancerInterceptor {
 				.getFragmentContext(MetadataContext.FRAGMENT_TRANSITIVE);
 		labels.putAll(transitiveLabels);
 
-		// Because when the label is placed in RequestTemplate.header,
-		// RequestTemplate will parse the header according to the regular, which conflicts with the expression.
-		// Avoid conflicts by escaping.
-		Map<String, String> escapeLabels = new HashMap<>(labels.size());
-		for (Map.Entry<String, String> entry : labels.entrySet()) {
-			String escapedKey = ExpressionLabelUtils.escape(entry.getKey());
-			String escapedValue = ExpressionLabelUtils.escape(entry.getValue());
-			escapeLabels.put(escapedKey, escapedValue);
-		}
-
 		// pass label by header
-		if (escapeLabels.size() == 0) {
+		if (labels.size() == 0) {
 			request.getHeaders().set(RouterConstants.ROUTER_LABEL_HEADER, null);
 			return;
 		}
-		request.getHeaders().set(RouterConstants.ROUTER_LABEL_HEADER, JacksonUtils.serialize2Json(escapeLabels));
+		String encodedLabelsContent;
+		try {
+			encodedLabelsContent = URLEncoder.encode(JacksonUtils.serialize2Json(labels), StandardCharsets.UTF_8.name());
+		}
+		catch (UnsupportedEncodingException e) {
+			throw new RuntimeException("unsupported charset exception " + StandardCharsets.UTF_8.name());
+		}
+		request.getHeaders().set(RouterConstants.ROUTER_LABEL_HEADER, encodedLabelsContent);
 	}
 
 	private Map<String, String> getExpressionLabels(HttpRequest request, String peerServiceName) {

spring-cloud-starter-tencent-polaris-router/src/test/java/com/tencent/cloud/polaris/router/feign/RouterLabelFeignInterceptorTest.java

@@ -18,6 +18,9 @@
 
 package com.tencent.cloud.polaris.router.feign;
 
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
@@ -29,7 +32,6 @@ import com.tencent.cloud.common.metadata.MetadataContext;
 import com.tencent.cloud.common.metadata.MetadataContextHolder;
 import com.tencent.cloud.common.metadata.config.MetadataLocalProperties;
 import com.tencent.cloud.common.util.ApplicationContextAwareUtils;
-import com.tencent.cloud.common.util.ExpressionLabelUtils;
 import com.tencent.cloud.common.util.JacksonUtils;
 import com.tencent.cloud.polaris.router.RouterConstants;
 import com.tencent.cloud.polaris.router.RouterRuleLabelResolver;
@@ -50,6 +52,7 @@ import static org.mockito.Mockito.when;
 /**
  * test for {@link RouterLabelFeignInterceptor}
  * @author lepdou 2022-05-26
+ * @author cheese8 2022-06-20
  */
 @RunWith(MockitoJUnitRunner.class)
 public class RouterLabelFeignInterceptorTest {
@@ -117,26 +120,24 @@ public class RouterLabelFeignInterceptorTest {
 
 				Collection<String> routerLabels = requestTemplate.headers().get(RouterConstants.ROUTER_LABEL_HEADER);
 
-				Assert.assertNotNull(routerLabels);
+				Map<String, String> routerLabelsMap = new HashMap<>();
-				for (String value : routerLabels) {
+				try {
-					Map<String, String> labels = unescape(JacksonUtils.deserialize2Map(value));
+					String routerLabelContent = routerLabels.stream().findFirst().get();
-
+					routerLabelsMap.putAll(JacksonUtils.deserialize2Map(URLDecoder.decode(routerLabelContent, StandardCharsets.UTF_8.name())));
-					Assert.assertEquals("v1", labels.get("k1"));
-					Assert.assertEquals("v22", labels.get("k2"));
-					Assert.assertEquals("v3", labels.get("k3"));
-					Assert.assertEquals("v4", labels.get("k4"));
-					Assert.assertEquals(headerUidValue, labels.get("${http.header.uid}"));
-					Assert.assertEquals("", labels.get("${http.header.name}"));
-				}
-			}
 				}
+				catch (UnsupportedEncodingException e) {
+					throw new RuntimeException("unsupported charset exception " + StandardCharsets.UTF_8.name());
 				}
 
-	private Map<String, String> unescape(Map<String, String> labels) {
+				Assert.assertNotNull(routerLabels);
-		Map<String, String> result = new HashMap<>();
+				Assert.assertEquals("v1", routerLabelsMap.get("k1"));
-		for (Map.Entry<String, String> entry : labels.entrySet()) {
+				Assert.assertEquals("v22", routerLabelsMap.get("k2"));
-			result.put(ExpressionLabelUtils.unescape(entry.getKey()), ExpressionLabelUtils.unescape(entry.getValue()));
+				Assert.assertEquals("v3", routerLabelsMap.get("k3"));
+				Assert.assertEquals("v4", routerLabelsMap.get("k4"));
+				Assert.assertEquals(headerUidValue, routerLabelsMap.get("${http.header.uid}"));
+				Assert.assertEquals("", routerLabelsMap.get("${http.header.name}"));
+			}
 		}
-		return result;
 	}
+
 }

spring-cloud-starter-tencent-polaris-router/src/test/java/com/tencent/cloud/polaris/router/resttemplate/PolarisLoadBalancerInterceptorTest.java

@@ -18,8 +18,9 @@
 
 package com.tencent.cloud.polaris.router.resttemplate;
 
-
 import java.net.URI;
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -60,6 +61,7 @@ import static org.mockito.Mockito.when;
 /**
  * test for {@link PolarisLoadBalancerInterceptor}
  * @author lepdou 2022-05-26
+ * @author cheese8 2022-06-20
  */
 @RunWith(MockitoJUnitRunner.class)
 public class PolarisLoadBalancerInterceptorTest {
@@ -184,13 +186,13 @@ public class PolarisLoadBalancerInterceptorTest {
 		verify(routerRuleLabelResolver).getExpressionLabelKeys(callerService, callerService, calleeService);
 		verify(routerLabelResolver).resolve(request, null);
 
-		Map<String, String> headers = JacksonUtils.deserialize2Map(request.getHeaders()
+		Map<String, String> headers = JacksonUtils.deserialize2Map(URLDecoder.decode(request.getHeaders()
-				.get(RouterConstants.ROUTER_LABEL_HEADER).get(0));
+				.get(RouterConstants.ROUTER_LABEL_HEADER).get(0), StandardCharsets.UTF_8.name()));
 		Assert.assertEquals("v1", headers.get("k1"));
 		Assert.assertEquals("v22", headers.get("k2"));
 		Assert.assertEquals("v4", headers.get("k4"));
-		Assert.assertEquals("GET", headers.get("##@$@##http.method}"));
+		Assert.assertEquals("GET", headers.get("${http.method}"));
-		Assert.assertEquals("/user/get", headers.get("##@$@##http.uri}"));
+		Assert.assertEquals("/user/get", headers.get("${http.uri}"));
 	}
 
 	static class MockedLoadBalancerRequest<T> implements LoadBalancerRequest<T> {

spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/ExpressionLabelUtils.java

@@ -41,6 +41,7 @@ import org.springframework.web.server.ServerWebExchange;
  * the utils for parse label expression.
  *
  * @author lepdou 2022-05-13
+ * @author cheese8 2022-06-20
  */
 public class ExpressionLabelUtils {
 
@@ -76,18 +77,10 @@ public class ExpressionLabelUtils {
 	 * the expression of uri.
 	 */
 	public static final String LABEL_URI = "${http.uri}";
-	/**
-	 * the prefix of expression.
-	 */
-	public static final String LABEL_PREFIX = "${";
 	/**
 	 * the suffix of expression.
 	 */
 	public static final String LABEL_SUFFIX = "}";
-	/**
-	 * the escape prefix of label.
-	 */
-	public static final String LABEL_ESCAPE_PREFIX = "##@$@##";
 
 	public static boolean isExpressionLabel(String labelKey) {
 		if (StringUtils.isEmpty(labelKey)) {
@@ -103,14 +96,6 @@ public class ExpressionLabelUtils {
 				&& StringUtils.endsWith(labelKey, LABEL_SUFFIX);
 	}
 
-	public static String escape(String str) {
-		return StringUtils.replace(str, LABEL_PREFIX, LABEL_ESCAPE_PREFIX);
-	}
-
-	public static String unescape(String str) {
-		return StringUtils.replace(str, LABEL_ESCAPE_PREFIX, LABEL_PREFIX);
-	}
-
 	public static Map<String, String> resolve(HttpServletRequest request, Set<String> labelKeys) {
 		if (CollectionUtils.isEmpty(labelKeys)) {
 			return Collections.emptyMap();

spring-cloud-tencent-commons/src/main/java/com/tencent/cloud/common/util/ResourceFileUtils.java

@@ -23,6 +23,7 @@ import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 
 import org.springframework.core.io.ClassPathResource;
+import org.springframework.util.StreamUtils;
 
 /**
  * Read file content from classpath resource.
@@ -35,20 +36,15 @@ public final class ResourceFileUtils {
 	}
 
 	public static String readFile(String path) throws IOException {
-		StringBuilder sb = new StringBuilder();
 
 		ClassPathResource classPathResource = new ClassPathResource(path);
 
 		if (classPathResource.exists() && classPathResource.isReadable()) {
 			try (InputStream inputStream = classPathResource.getInputStream()) {
-				byte[] buffer = new byte[1024 * 10];
+				return StreamUtils.copyToString(inputStream, StandardCharsets.UTF_8);
-				int len;
-				while ((len = inputStream.read(buffer)) != -1) {
-					sb.append(new String(buffer, 0, len, StandardCharsets.UTF_8));
 			}
 		}
-		}
+		return "";
-		return sb.toString();
 	}
 
 }

spring-cloud-tencent-commons/src/test/java/com/tencent/cloud/common/util/ExpressionLabelUtilsTest.java

@@ -39,6 +39,7 @@ import org.springframework.mock.web.server.MockServerWebExchange;
 /**
  * test for {@link ExpressionLabelUtils}
  * @author lepdou 2022-05-27
+ * @author cheese8 2022-06-20
  */
 @RunWith(MockitoJUnitRunner.class)
 public class ExpressionLabelUtilsTest {
@@ -76,39 +77,6 @@ public class ExpressionLabelUtilsTest {
 		Assert.assertFalse(ExpressionLabelUtils.isExpressionLabel(invalidLabel9));
 	}
 
-	@Test
-	public void testEscape() {
-		String validLabel1 = "${http.query.uid}";
-		String validLabel2 = "${http.header.uid}";
-		String validLabel3 = "${http.cookie.uid}";
-		String validLabel4 = "${http.method}";
-		String validLabel5 = "${http.uri}";
-		String invalidLabel1 = "${http.queryuid}";
-		String invalidLabel2 = "{http.query.uid}";
-		String invalidLabel3 = "${http.query.uid";
-		String invalidLabel4 = "$ {http.query.uid}";
-		String invalidLabel5 = "${ http.query.uid}";
-		String invalidLabel6 = "${query.uid}";
-		String invalidLabel7 = "http.query.uid";
-		String invalidLabel8 = "$${http.uri}";
-		String invalidLabel9 = "#{http.uri}";
-
-		Assert.assertEquals(validLabel1, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(validLabel1)));
-		Assert.assertEquals(validLabel2, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(validLabel2)));
-		Assert.assertEquals(validLabel3, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(validLabel3)));
-		Assert.assertEquals(validLabel4, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(validLabel4)));
-		Assert.assertEquals(validLabel5, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(validLabel5)));
-		Assert.assertEquals(invalidLabel1, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(invalidLabel1)));
-		Assert.assertEquals(invalidLabel2, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(invalidLabel2)));
-		Assert.assertEquals(invalidLabel3, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(invalidLabel3)));
-		Assert.assertEquals(invalidLabel4, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(invalidLabel4)));
-		Assert.assertEquals(invalidLabel5, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(invalidLabel5)));
-		Assert.assertEquals(invalidLabel6, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(invalidLabel6)));
-		Assert.assertEquals(invalidLabel7, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(invalidLabel7)));
-		Assert.assertEquals(invalidLabel8, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(invalidLabel8)));
-		Assert.assertEquals(invalidLabel9, ExpressionLabelUtils.unescape(ExpressionLabelUtils.escape(invalidLabel9)));
-	}
-
 	@Test
 	public void testResolveHttpServletRequest() {
 		String validLabel1 = "${http.query.uid}";

spring-cloud-tencent-commons/src/test/java/com/tencent/cloud/common/util/ResourceFileUtilsTest.java

@@ -35,7 +35,7 @@ public class ResourceFileUtilsTest {
 	@Test
 	public void testReadExistedFile() throws IOException {
 		String content = ResourceFileUtils.readFile("test.txt");
-		Assert.assertEquals("just for test\n", content);
+		Assert.assertEquals("just for test", content);
 	}
 
 	@Test

spring-cloud-tencent-examples/polaris-ratelimit-example/ratelimit-callee-service/pom.xml

@@ -18,6 +18,11 @@
 			<artifactId>spring-boot-starter-web</artifactId>
 		</dependency>
 
+        <dependency>
+            <groupId>com.tencent.cloud</groupId>
+            <artifactId>spring-cloud-starter-tencent-polaris-discovery</artifactId>
+        </dependency>
+
 		<dependency>
 			<groupId>com.tencent.cloud</groupId>
 			<artifactId>spring-cloud-starter-tencent-polaris-ratelimit</artifactId>