Apache Thrift入门2-Java代码实现例子
在上一篇文章中提到了Thrift的架构、传输协议(Ref),本篇文章将对Thrift的入门实例进行介绍。 分为如下5个部分: 运行环境、安装/配置、脚本文件、创建代码、运行程序。 一、开发环境(清单1) 1.操作系统 Server-Linux / Client-WinXP 2.SDK Sun JDK1.5+ 3.需
在上一篇文章中提到了Thrift的架构、传输协议(Ref),本篇文章将对Thrift的入门实例进行介绍。 分为如下5个部分: 运行环境、安装/配置、脚本文件、创建代码、运行程序。
一、开发环境(清单1)
1.操作系统
Server-Linux / Client-WinXP
2.SDK
Sun JDK1.5+
3.需要的jar依赖包
libthrift.jar
slf4j-api-1.5.8.jar
slf4j-log4j12-1.5.8.jar
log4j-1.2.15.jar
4.编译工具
Apache Ant & Apache ivy
二、安装/配置 (清单2)
1.下载thrift源文件
http://labs.renren.com/apache-mirror//incubator/thrift/0.5.0-incubating/thrift-0.5.0.tar.gz
2.编译thrift源文件
1)解压 thrift-0.5.0.tar.gz
2)用ant编译源代码,进入x:\thrift-0.5.0\lib\java目录,执行ant,通过ant中的ivy工具会自动从站点下载所需要的依赖包,编译完成后如图所示:
3)编译过程中下载的依赖包在x:\thrift-0.5.0\lib\java\build\ivy\lib 目录下可以看见下载的jar依赖包,将编译成功以后的jar包加入Eclipse的开发环境中。
三、脚本文件(清单3)
1.创建脚本
创建脚本文件 testJava.thrift ,脚本文件内容如下:
namespace java com.javabloger.gen.code # 注释1 定义生成代码的命名空间,与你需要定义的package相对应。
struct Blog { # 注释2.1 定义实体名称和数据结构,类似你业务逻辑中的pojo get/set
1: string topic # 注释2.2 参数类型可以参见 Thrift wiki
2: binary content
3: i64 createdTime
4: string id
5: string ipAddress
6: map
}
service ThriftCase { # 注释3 代码生成的类名,你的业务逻辑代码需要实现代码生成的ThriftCase.Iface接口
i32 testCase1(1:i32 num1, 2:i32 num2, 3:string num3) #注释4.1 方法名称和方法中的入参,入参类型参见wiki
list
void testCase3()
void testCase4(1:list
}
2.运行脚本
1)从 thrift 站点下载windows版本的编译工具,下载地址:http://labs.renren.com/apache-mirror//incubator/thrift/0.5.0-incubating/thrift-0.5.0.exe
2)通过Thrift的脚本文件,运行 thrift 命令创建生成的代码,例如:执行 thrift -gen java x:\testJava.thrift 命令,在当前运行的盘符下,可看见gen-java目录,在这里目录中可以看见生成的java代码,更多thrift 命令内容,请参见thrift命令自带的help。
3.Thrift 中的基本数据类型 (清单4)
类型 描述
bool true, false
byte 8位的有符号整数
i16 16位的有符号整数
i32 32位的有符号整数
i64 64位的有符号整数
double 64位的浮点数
string UTF-8编码的字符串
binary 字符数组
struct 结构体
list 有序的元素列表,类似于STL的vector
set 无序的不重复元素集,类似于STL的set
map key-value型的映射,类似于STL的map
exception 是一个继承于本地语言的exception基类
service 服务。包含多个函数接口(纯虚函数)
四、创建代码(清单5)
我将示例工程分了4个包,如下所示:
\com\javabloger
\client # 1.客户端测试代码
\gen\code # 2.通过脚本生成的class
\layer\transport # 3.服务器端代码和定义的传输协议
\layer\business # 4.具体的业务逻辑代码
具体代码内容这里就不阐述了,重点是要明白代码的结构和层次关系,其次是里面主要的几个类的含义,至于代码是怎么写的并不是非常重要,仅仅是我个人观点,仅供参考,谢谢。
代码示例的下载地址: http://javabloger-mini-books.googlecode.com/files/Thritf.zip
五、运行程序
先运行server,再运行client ,客户端向服务器端发送数据调用服务器端的4个方法,服务器端被传入客户端数据,运行效果如图所示:
相关文章:
Apache Thrift入门1-架构&介绍
–end–
原文地址:Apache Thrift入门2-Java代码实现例子, 感谢原作者分享。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

To set up a CGI directory in Apache, you need to perform the following steps: Create a CGI directory such as "cgi-bin", and grant Apache write permissions. Add the "ScriptAlias" directive block in the Apache configuration file to map the CGI directory to the "/cgi-bin" URL. Restart Apache.

When the Apache 80 port is occupied, the solution is as follows: find out the process that occupies the port and close it. Check the firewall settings to make sure Apache is not blocked. If the above method does not work, please reconfigure Apache to use a different port. Restart the Apache service.

Apache connects to a database requires the following steps: Install the database driver. Configure the web.xml file to create a connection pool. Create a JDBC data source and specify the connection settings. Use the JDBC API to access the database from Java code, including getting connections, creating statements, binding parameters, executing queries or updates, and processing results.

The steps to start Apache are as follows: Install Apache (command: sudo apt-get install apache2 or download it from the official website) Start Apache (Linux: sudo systemctl start apache2; Windows: Right-click the "Apache2.4" service and select "Start") Check whether it has been started (Linux: sudo systemctl status apache2; Windows: Check the status of the "Apache2.4" service in the service manager) Enable boot automatically (optional, Linux: sudo systemctl

There are 3 ways to view the version on the Apache server: via the command line (apachectl -v or apache2ctl -v), check the server status page (http://<server IP or domain name>/server-status), or view the Apache configuration file (ServerVersion: Apache/<version number>).

To delete an extra ServerName directive from Apache, you can take the following steps: Identify and delete the extra ServerName directive. Restart Apache to make the changes take effect. Check the configuration file to verify changes. Test the server to make sure the problem is resolved.

How to view the Apache version? Start the Apache server: Use sudo service apache2 start to start the server. View version number: Use one of the following methods to view version: Command line: Run the apache2 -v command. Server Status Page: Access the default port of the Apache server (usually 80) in a web browser, and the version information is displayed at the bottom of the page.

How to configure Zend in Apache? The steps to configure Zend Framework in an Apache Web Server are as follows: Install Zend Framework and extract it into the Web Server directory. Create a .htaccess file. Create the Zend application directory and add the index.php file. Configure the Zend application (application.ini). Restart the Apache Web server.
