修改readme.md

spring-boot/spring-boot-data-jpa/src/test/java/com/heibaiying/springboot/SpringBootDataJpaApplicationTests.java

@@ -0,0 +1,57 @@
+package com.heibaiying.springboot;
+
+import com.heibaiying.springboot.bean.Programmer;
+import com.heibaiying.springboot.dao.ProgRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.jpa.domain.JpaSort;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.util.Date;
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Stream;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringBootDataJpaApplicationTests {
+
+    @Autowired
+    private ProgRepository repository;
+
+    @Test
+    public void save() {
+        repository.save(new Programmer("xiaoxiao", 12, 2121.34f, new Date()));
+    }
+
+
+    @Test
+    public void get() {
+        // 遵循命名规范的查询
+        List<Programmer> programmers = repository.findAllByName("xiaominng");
+        programmers.forEach(System.out::println);
+        // 传入参数名称
+        Programmer param = repository.findByParam("xiaolan", 21);
+        System.out.println("findByParam:" + param);
+        // 占位符查询
+        List<Programmer> byCondition = repository.findByCondition("xiaolan", 347.34f);
+        System.out.println("byCondition:" + byCondition);
+        //条件与分页查询
+        List<Programmer> programmerList = repository.findByAndSort("xiaominng", Sort.by("salary"));
+        programmerList.forEach(System.out::println);
+    }
+
+    @Test
+    public void delete() {
+        Optional<Programmer> programmer = repository.findById(4);
+        if (programmer.isPresent()) {
+            repository.deleteById(4);
+        }
+    }
+}
+