refactor: optimize ci action config

Author: dengliming

.github/workflows/maven.yml

@@ -3,41 +3,15 @@ name: Java CI
 on: [push]
 
 jobs:
- test_eight:
-
- runs-on: ubuntu-latest
-
- steps:
- - uses: actions/checkout@v1
- - name: Set up JDK 1.8
- uses: actions/setup-java@v1
- with:
- java-version: 1.8
- - name: Build with Maven
- run: mvn test
- 
- test_nine:
-
+ test:
  runs-on: ubuntu-latest
-
- steps:
- - uses: actions/checkout@v1
- - name: Set up JDK 9
- uses: actions/setup-java@v1
- with:
- java-version: 9
- - name: Build with Maven
- run: mvn test
- 
- test_eleven:
-
- runs-on: ubuntu-latest
-
+ strategy:
+ matrix:
+ java-version: [ 8, 9, 11 ]
  steps:
- - uses: actions/checkout@v1
- - name: Set up JDK 11
- uses: actions/setup-java@v1
+ - uses: actions/checkout@v2
+ - uses: actions/setup-java@v1
  with:
- java-version: 11
+ java-version: ${{ matrix.java-version }}
  - name: Build with Maven
  run: mvn test