Add new configuration item.

Fixed equals and hash method.
Replaced StringUtils, Spring's isEmpty method is deprecated.

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/NacosDiscoveryProperties.java

@@ -19,16 +19,13 @@ package com.alibaba.cloud.nacos;
 import java.net.Inet4Address;
 import java.net.InetAddress;
 import java.net.NetworkInterface;
-import java.util.Enumeration;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Properties;
+import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 import javax.annotation.PostConstruct;
 
+import com.alibaba.cloud.commons.lang.StringUtils;
 import com.alibaba.cloud.nacos.event.NacosDiscoveryInfoChangedEvent;
 import com.alibaba.nacos.api.naming.NamingService;
 import com.alibaba.nacos.api.naming.PreservedMetadataKeys;
@@ -44,18 +41,8 @@ import org.springframework.cloud.commons.util.InetUtils;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.core.env.ConfigurableEnvironment;
 import org.springframework.core.env.Environment;
-import org.springframework.util.StringUtils;
-
-import static com.alibaba.nacos.api.PropertyKeyConst.ACCESS_KEY;
-import static com.alibaba.nacos.api.PropertyKeyConst.CLUSTER_NAME;
-import static com.alibaba.nacos.api.PropertyKeyConst.ENDPOINT;
-import static com.alibaba.nacos.api.PropertyKeyConst.ENDPOINT_PORT;
-import static com.alibaba.nacos.api.PropertyKeyConst.NAMESPACE;
-import static com.alibaba.nacos.api.PropertyKeyConst.NAMING_LOAD_CACHE_AT_START;
-import static com.alibaba.nacos.api.PropertyKeyConst.PASSWORD;
-import static com.alibaba.nacos.api.PropertyKeyConst.SECRET_KEY;
-import static com.alibaba.nacos.api.PropertyKeyConst.SERVER_ADDR;
-import static com.alibaba.nacos.api.PropertyKeyConst.USERNAME;
+
+import static com.alibaba.nacos.api.PropertyKeyConst.*;
 
 /**
  * @author dungu.zpf
@@ -63,6 +50,7 @@ import static com.alibaba.nacos.api.PropertyKeyConst.USERNAME;
  * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
  * @author <a href="mailto:lyuzb@lyuzb.com">lyuzb</a>
  * @author <a href="mailto:78552423@qq.com">eshun</a>
+ * @author freeman
  */
 @ConfigurationProperties("spring.cloud.nacos.discovery")
 public class NacosDiscoveryProperties {
@@ -207,6 +195,12 @@ public class NacosDiscoveryProperties {
 	 */
 	private boolean ephemeral = true;
 
+	/**
+	 * Whether to enable nacos failure tolerance. If enabled, nacos will return cached
+	 * values when exceptions occur.
+	 */
+	private boolean failureToleranceEnabled = true;
+
 	@Autowired
 	private InetUtils inetUtils;
 
@@ -486,6 +480,14 @@ public class NacosDiscoveryProperties {
 		this.ephemeral = ephemeral;
 	}
 
+	public boolean isFailureToleranceEnabled() {
+		return failureToleranceEnabled;
+	}
+
+	public void setFailureToleranceEnabled(boolean failureToleranceEnabled) {
+		this.failureToleranceEnabled = failureToleranceEnabled;
+	}
+
 	@Override
 	public boolean equals(Object o) {
 		if (this == o) {
@@ -495,7 +497,12 @@ public class NacosDiscoveryProperties {
 			return false;
 		}
 		NacosDiscoveryProperties that = (NacosDiscoveryProperties) o;
-		return Objects.equals(serverAddr, that.serverAddr)
+		return watchDelay == that.watchDelay && Float.compare(that.weight, weight) == 0
+				&& registerEnabled == that.registerEnabled && port == that.port
+				&& secure == that.secure && instanceEnabled == that.instanceEnabled
+				&& ephemeral == that.ephemeral
+				&& failureToleranceEnabled == that.failureToleranceEnabled
+				&& Objects.equals(serverAddr, that.serverAddr)
 				&& Objects.equals(username, that.username)
 				&& Objects.equals(password, that.password)
 				&& Objects.equals(endpoint, that.endpoint)
@@ -503,8 +510,9 @@ public class NacosDiscoveryProperties {
 				&& Objects.equals(logName, that.logName)
 				&& Objects.equals(service, that.service)
 				&& Objects.equals(clusterName, that.clusterName)
-				&& Objects.equals(group, that.group) && Objects.equals(ip, that.ip)
-				&& Objects.equals(port, that.port)
+				&& Objects.equals(group, that.group)
+				&& Objects.equals(namingLoadCacheAtStart, that.namingLoadCacheAtStart)
+				&& Objects.equals(metadata, that.metadata) && Objects.equals(ip, that.ip)
 				&& Objects.equals(networkInterface, that.networkInterface)
 				&& Objects.equals(accessKey, that.accessKey)
 				&& Objects.equals(secretKey, that.secretKey)
@@ -517,14 +525,15 @@ public class NacosDiscoveryProperties {
 	public int hashCode() {
 		return Objects.hash(serverAddr, username, password, endpoint, namespace,
 				watchDelay, logName, service, weight, clusterName, group,
-				namingLoadCacheAtStart, registerEnabled, ip, networkInterface, port,
-				secure, accessKey, secretKey, heartBeatInterval, heartBeatTimeout,
-				ipDeleteTimeout, instanceEnabled, ephemeral);
+				namingLoadCacheAtStart, metadata, registerEnabled, ip, networkInterface,
+				port, secure, accessKey, secretKey, heartBeatInterval, heartBeatTimeout,
+				ipDeleteTimeout, instanceEnabled, ephemeral, failureToleranceEnabled);
 	}
 
 	@Override
 	public String toString() {
 		return "NacosDiscoveryProperties{" + "serverAddr='" + serverAddr + '\''
+				+ ", username='" + username + '\'' + ", password='" + password + '\''
 				+ ", endpoint='" + endpoint + '\'' + ", namespace='" + namespace + '\''
 				+ ", watchDelay=" + watchDelay + ", logName='" + logName + '\''
 				+ ", service='" + service + '\'' + ", weight=" + weight
@@ -535,7 +544,9 @@ public class NacosDiscoveryProperties {
 				+ ", port=" + port + ", secure=" + secure + ", accessKey='" + accessKey
 				+ '\'' + ", secretKey='" + secretKey + '\'' + ", heartBeatInterval="
 				+ heartBeatInterval + ", heartBeatTimeout=" + heartBeatTimeout
-				+ ", ipDeleteTimeout=" + ipDeleteTimeout + '}';
+				+ ", ipDeleteTimeout=" + ipDeleteTimeout + ", instanceEnabled="
+				+ instanceEnabled + ", ephemeral=" + ephemeral
+				+ ", failureToleranceEnabled=" + failureToleranceEnabled + '}';
 	}
 
 	public void overrideFromEnv(Environment env) {

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -74,11 +74,5 @@
       "type": "java.lang.Boolean",
       "defaultValue": false,
       "description": "Integrate LoadBalancer or not."
-    },
-    {
-      "name": "spring.cloud.nacos.discovery.failure-tolerance-enabled",
-      "type": "java.lang.Boolean",
-      "defaultValue": true,
-      "description": "Whether to enable nacos failure tolerance. If enabled, nacos will return cached values when exceptions occur."
     }
 ]}