Java Spark - 简单的web框架
新建一个web project
1
mvn archetype:generate -DarchetypeArtifactId=maven-archetype-webapp
加入Eclipse IDE支持
1
mvn eclipse:eclipse -Dwtpversion=2.0
导入项目
打开Eclipse，Import -> Existing Projects into Workspace
添加组件
打开pom.xml，把spark加进去, 需要加一个repository和一个dependency
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>jieqin</groupId>
<artifactId>blog</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>blog Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>spark</groupId>
<artifactId>spark</artifactId>
<version>0.9.9.4-SNAPSHOT</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>Spark repository</id>
<url>http://www.sparkjava.com/nexus/content/repositories/spark/</url>
</repository>
</repositories>
<build>
<finalName>blog</finalName>
</build>
</project>
安装组件
1
mvn clean install
maven会自动下载spark包，以及spark包所依赖的3个包（jetty-webapp, servlet-api, slf4j-api）
需要jetty的原因是spark使它作为embedded sever，这样不需要额外的server就可以运行spark项目
新建一个Java class
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
package blog;
import spark.*;
public class Test {
public static void main(String[] args) {
Spark.get(new Route("/hello") {
/* (non-Javadoc)
* @see spark.Route#handle(spark.Request, spark.Response)
*/
@Override
public Object handle(Request request, Response response) {
return "Hello World from Spark!";
}
});
}
}
运行
注意Eclipse的console view里面出现如下的log
1
2
3
4
5
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
== Spark has ignited ...
>> Listening on 0.0.0.0:4567
测试
这时候表示spark（“火花”的英文）已经被点燃了！打开web浏览器，输入http://localhost:4567/hello