feat(mcp-server-chat2mysql): Introduce multi-language support for Chat2MySQL prompts

Author: codeboyzhou

README.md

@@ -25,5 +25,5 @@ If you are looking for servers implemented with Typescript MCP SDK or Python MCP
 
 These servers aim to demonstrate MCP features and the MCP Java SDK.
 
-- [Chat2MySQL](https://github.com/codeboyzhou/mcp-java-sdk-examples/blob/main/mcp-server-chat2mysql/README.md) - Use AI agent to chat with your MySQL database
+- [Chat2MySQL](https://github.com/codeboyzhou/mcp-java-sdk-examples/blob/main/mcp-server-chat2mysql/README.md) - Use AI agent that supports multi-language to chat with your MySQL database
 - [Filesystem](https://github.com/codeboyzhou/mcp-java-sdk-examples/blob/main/mcp-server-filesystem/README.md) - Secure file operations with configurable access controls

mcp-server-chat2mysql/src/main/java/com/github/mcp/examples/server/chat2mysql/McpPrompts.java

@@ -1,5 +1,6 @@
 package com.github.mcp.examples.server.chat2mysql;
 
+import com.github.mcp.examples.server.chat2mysql.enums.PromptMessageEnding;
 import com.github.mcp.examples.server.chat2mysql.util.SqlHelper;
 import io.modelcontextprotocol.server.McpServerFeatures;
 import io.modelcontextprotocol.server.McpSyncServer;
@@ -56,6 +57,7 @@ public static McpServerFeatures.SyncPromptSpecification generateSqlOptimizationT
 
             promptTemplate.append("The EXPLAIN plan for the SQL statement is: ").append(SqlHelper.explainSql(sqlStr));
             promptTemplate.append("\n\nPlease provide optimization recommendations for the SQL statement.");
+            promptTemplate.append("\n\n").append(PromptMessageEnding.ofCurrentUserLanguage());
 
             McpSchema.TextContent content = new McpSchema.TextContent(promptTemplate.toString());
             McpSchema.PromptMessage message = new McpSchema.PromptMessage(McpSchema.Role.USER, content);

mcp-server-chat2mysql/src/main/java/com/github/mcp/examples/server/chat2mysql/enums/PromptMessageEnding.java

@@ -0,0 +1,33 @@
+package com.github.mcp.examples.server.chat2mysql.enums;
+
+public enum PromptMessageEnding {
+
+    en_US("en_US", "Please answer in English"),
+
+    zh_CN("zh_CN", "请使用中文回答"),
+
+    ;
+
+    private final String code;
+
+    private final String prompt;
+
+    PromptMessageEnding(String code, String prompt) {
+        this.code = code;
+        this.prompt = prompt;
+    }
+
+    public static String ofCurrentUserLanguage() {
+        PromptMessageEnding[] values = values();
+        for (PromptMessageEnding value : values) {
+            final String language = System.getProperty("user.language");
+            final String country = System.getProperty("user.country");
+            final String locale = String.format("%s_%s", language, country);
+            if (value.code.equals(locale)) {
+                return value.prompt;
+            }
+        }
+        return en_US.prompt;
+    }
+
+}