Guava缓存换成Caffeine缓存

discovery-plugin-framework/pom.xml

@@ -31,6 +31,11 @@
         </dependency>
 
         <dependency>
+            <groupId>com.github.ben-manes.caffeine</groupId>
+            <artifactId>caffeine</artifactId>
+        </dependency>
+
+        <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter</artifactId>
         </dependency>

discovery-plugin-framework/src/main/java/com/nepxion/discovery/plugin/framework/cache/PluginCache.java

@@ -9,22 +9,20 @@ package com.nepxion.discovery.plugin.framework.cache;
  * @version 1.0
  */
 
-import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
 
 import org.apache.commons.lang3.StringUtils;
 
-import com.google.common.cache.CacheBuilder;
-import com.google.common.cache.CacheLoader;
-import com.google.common.cache.LoadingCache;
+import com.github.benmanes.caffeine.cache.CacheLoader;
+import com.github.benmanes.caffeine.cache.Caffeine;
+import com.github.benmanes.caffeine.cache.LoadingCache;
 
 public class PluginCache {
     private LoadingCache<String, String> loadingCache;
 
     public PluginCache() {
-        loadingCache = CacheBuilder.newBuilder()
-                .concurrencyLevel(8)
-                .expireAfterWrite(365 * 100, TimeUnit.DAYS)
+        loadingCache = Caffeine.newBuilder()
+                .expireAfterWrite(365 * 10, TimeUnit.DAYS)
                 .initialCapacity(10)
                 .maximumSize(100)
                 .recordStats()
@@ -43,11 +41,7 @@ public class PluginCache {
     }
 
     public String get(String key) {
-        try {
-            return loadingCache.get(key);
-        } catch (ExecutionException e) {
-            return StringUtils.EMPTY;
-        }
+        return loadingCache.get(key);
     }
 
     public boolean clear(String key) {

pom.xml

@@ -31,6 +31,7 @@
         <commons.collections4.version>4.1</commons.collections4.version>
         <commons.io.version>2.5</commons.io.version>
         <dom4j.version>1.6.1</dom4j.version>
+        <caffeine.version>2.6.2</caffeine.version>
         <swagger.version>2.7.0</swagger.version>
         <spring.cloud.version>Edgware.SR4</spring.cloud.version>
         <!-- <spring.cloud.version>Dalston.SR5</spring.cloud.version> -->
@@ -130,6 +131,12 @@
             </dependency>
 
             <dependency>
+                <groupId>com.github.ben-manes.caffeine</groupId>
+                <artifactId>caffeine</artifactId>
+                <version>${caffeine.version}</version>
+            </dependency>
+
+            <dependency>
                 <groupId>dom4j</groupId>
                 <artifactId>dom4j</artifactId>
                 <version>${dom4j.version}</version>