diff --git a/.github/workflows/XSS.ql b/.github/workflows/XSS.ql
new file mode 100644
index 00000000..c488a5d0
--- /dev/null
+++ b/.github/workflows/XSS.ql
@@ -0,0 +1,38 @@
+/**
+ * @name Cross-site scripting
+ * @description Writing user input directly to a web page
+ *              allows for a cross-site scripting vulnerability.
+ * @kind path-problem
+ * @problem.severity error
+ * @security-severity 6.1
+ * @precision high
+ * @id java/xss
+ * @tags security
+ *       external/cwe/cwe-079
+ */
+
+import java
+import semmle.code.java.dataflow.FlowSources
+import semmle.code.java.security.XSS
+import DataFlow::PathGraph
+
+class XssConfig extends TaintTracking::Configuration {
+  XssConfig() { this = "XSSConfig" }
+
+  override predicate isSource(DataFlow::Node source) { source instanceof RemoteFlowSource }
+
+  override predicate isSink(DataFlow::Node sink) { sink instanceof XssSink }
+
+  override predicate isSanitizer(DataFlow::Node node) { node instanceof XssSanitizer }
+
+  override predicate isSanitizerOut(DataFlow::Node node) { node instanceof XssSinkBarrier }
+
+  override predicate isAdditionalTaintStep(DataFlow::Node node1, DataFlow::Node node2) {
+    any(XssAdditionalTaintStep s).step(node1, node2)
+  }
+}
+
+from DataFlow::PathNode source, DataFlow::PathNode sink, XssConfig conf
+where conf.hasFlowPath(source, sink)
+select sink.getNode(), source, sink, "Cross-site scripting vulnerability due to $@.",
+  source.getNode(), "user-provided value"
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
new file mode 100644
index 00000000..7655526d
--- /dev/null
+++ b/.github/workflows/codeql.yml
@@ -0,0 +1,84 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ "master" ]
+  schedule:
+    - cron: '45 12 * * 4'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'java' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
+        # Use only 'java' to analyze code written in Java, Kotlin or both
+        # Use only 'javascript' to analyze code written in JavaScript, TypeScript or both
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+#         queries: +./.github/workflows/XSS.ql
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+
+        # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+        # queries: security-extended,security-and-quality
+
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, Go, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+    #   If the Autobuild fails above, remove it and uncomment the following three lines.
+    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+    # - run: |
+    #     echo "Run, Build Application using script"
+    #     ./location_of_script_within_repo/buildscript.sh
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2
+      with:
+        category: "/language:${{matrix.language}}"
+    - name: Tar files
+      run: tar -cvf my_files.tar /home/runner/work/_temp/codeql_databases    
+    - name: upload result
+      uses: actions/upload-artifact@v3
+      with: 
+        name: result
+        path: my_files.tar
diff --git a/.github/workflows/qlpack.yml b/.github/workflows/qlpack.yml
new file mode 100644
index 00000000..00b75ddd
--- /dev/null
+++ b/.github/workflows/qlpack.yml
@@ -0,0 +1,3 @@
+name: example-query # 包名 确保唯一性 必写
+version: 0.1.0 # 版本号 必写
+libraryPathDependencies: codeql-java # 依赖 必写