使用Ebean访问SQL Database

    根据你的数据库类型，你也需要加入相应的JDBC访问包的依赖。比如：

    1. <dependency>
    2.     <groupId>com.h2database</groupId>
    3.     <artifactId>h2</artifactId>
    4.     <version>1.4.178</version>
    5. </dependency>

    配置

    1. firstName
    2. lastName
    3. address
    1. package com.mycom.myprj;
    3. import act.db.DB;
    5. import javax.persistence.Entity;
    6. import javax.persistence.Id;
    8. @Entity(name = "ctct")
    9. public class Contact {
    10.     @Id
    12.     private String fn;
    13.     private String ln;
    14.     private String addr;
    16.     public long getId() {
    17.         return null == id ? -1 : id;
    18.     }
    20.     public String getFirstName() {
    21.         return fn;
    22.     }
    24.     public void setFirstName(String fn) {
    25.         this.fn = fn;
    26.     }
    28.         return ln;
    29.     }
    32.         this.ln = ln;
    33.     }
    35.     public String getAddress() {
    36.         return addr;
    37.     }
    39.     public void setAddress(String addr) {
    40.         this.addr = addr;
    41.     }
    42. }

    注意 和Morphia访问层不同，Ebean访问层目前暂时不提供类似MorphiaModel的父类.

    数据访问对象和CRUD

    1. // find by last name
    2. Iterable<Contact> contacts = dao.findBy("firstName", firstName);
    4. // find by both first and last name
    5. Iterable<Product> contacts = dao.findBy("firstName,lastName", firstName, lastName);
    7. Iterable<Product> contacts = dao.findBy("firstName", Pattern.compile(firstName));

    扩展

    TBD