一个spring data jpa的问题

Question

spring data jpa

Answer 1

问题就是，save操作无效，没有打印出Insert……语句，数据库没有数据

Answer 2

少贴了个Maven依赖<dependencies>
<!-- spring data jpa support -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.5.1.RELEASE</version>
</dependency>
<!-- mysql driver -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.27</version>
</dependency>
<!-- jpa hibernate实现 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.3.3.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.3.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.common</groupId>
<artifactId>hibernate-commons-annotations</artifactId>
<version>4.0.4.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
</dependencies>

Answer 3

他进去 处理代码方法里了吗。你有后台打印 进去了没。看下public Product createNewProduct(String name, float price) {
        Product product = new Product();
        product.setName(name);
        product.setPrice(price);
        return productDao.save(product);
    }看下进来这里了没

Answer 4

public Product createNewProduct(String name, float price) {
        Product product = new Product();
        product.setName(name);
        product.setPrice(price);
        return productDao.save(product);
    } 那这里面的  name 、price 有值吗

Answer 5

添加<context:annotation-config />