sharding key 报错

src/main/java/com/sqx/sharding/StandardShardingStrategyConf.java

@@ -4,16 +4,48 @@ import org.apache.shardingsphere.api.sharding.standard.PreciseShardingAlgorithm;
 import org.apache.shardingsphere.api.sharding.standard.PreciseShardingValue;
 import java.util.Collection;
 
-public class StandardShardingStrategyConf implements PreciseShardingAlgorithm<Long> {
+// 自定义包装类实现Comparable接口
+class ShardingValueWrapper implements Comparable<ShardingValueWrapper> {
+    private Object value;
+
+    public ShardingValueWrapper(Object value) {
+        this.value = value;
+    }
+
+    public Object getValue() {
+        return value;
+    }
+
     @Override
-    public String doSharding(Collection<String> availableTargetNames, PreciseShardingValue<Long> shardingValue) {
-        // 根据ID对5取模来确定表名
-        long tableIndex = shardingValue.getValue() % 5;
+    public int compareTo(ShardingValueWrapper other) {
+        // 这里简单比较两个包装类内部持有的对象的toString结果，实际可能需要更合理的比较逻辑
+        return this.value.toString().compareTo(other.value.toString());
+    }
+}
+
+public class StandardShardingStrategyConf implements PreciseShardingAlgorithm<ShardingValueWrapper> {
+
+    @Override
+    public String doSharding(Collection<String> availableTargetNames, PreciseShardingValue<ShardingValueWrapper> shardingValue) {
+        ShardingValueWrapper wrapper = shardingValue.getValue();
+        Object valueObj = wrapper.getValue();
+        Long valueLong;
+        try {
+            if (valueObj instanceof Long) {
+                valueLong = (Long) valueObj;
+            } else {
+                valueLong = Long.parseLong(valueObj.toString());
+            }
+        } catch (NumberFormatException e) {
+            throw new IllegalArgumentException("无法将传入的分片值转换为Long类型", e);
+        }
+
+        long tableIndex = valueLong % 5;
         for (String tableName : availableTargetNames) {
             if (tableName.endsWith(String.valueOf(tableIndex))) {
                 return tableName;
             }
         }
-        throw new IllegalArgumentException();
+        throw new IllegalArgumentException("没有找到匹配的表名");
     }
-}
+}