服务器评测Gradle – 简单测试驱动Web程序
# 平台 Ubuntu Linux
# 工程名称（顶级目录名）tdd
# 使用到的jar包
servlet-api.jar
org.springframework.core-3.0.4.RELEASE.jar
commons-logging-1.0.4.jar
spring-mock.jar
一、实现一个基于servlet以纯文本回显请求参数的例子。
1）编写EchoServlet代码
因为需要用到gradle来实现自动化构建，所以遵循gradle中Java工程的目录约定。
> mkdir -p src/main/java/com/thoughtworks/servlet
> cd src/main/java/com/thoughtworks/servlet
> touch EchoServlet.java
package com.thoughtworks.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class EchoServlet extends HttpServlet{
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setHeader(“Content-Type”, “text/plain”); //设置纯文本响应头
PrintWriter writer = response.getWriter();
Enumeration e = request.getParameterNames(); // 获取请求参数名
while(e.hasMoreElements()) {
String name = String.valueOf(e.nextElement());
String[] values = request.getParameterValues(name);
for(String v : values) {
writer.write(name+”=”+v);
writer.write(“\n”);
}
}
writer.close();
}
}
更多详情见请继续阅读下一页的精彩内容： http://www.linuxidc.com/Linux/2013-11/92610p2.htm
Gradle 的详细介绍：请点这里
Gradle 的下载地址：请点这里
相关阅读：
Gradle创建项目目录结构 http://www.linuxidc.com/Linux/2012-07/64177.htm
Gradle 打包 Groovy 脚本成 jar与上传到maven repository http://www.linuxidc.com/Linux/2012-07/64178.htm
Gradle 构建 Android 应用常见问题解决指南 http://www.linuxidc.com/Linux/2013-10/90807.htm
2）编写EchoServlet单元测试用例
遵循gradle标准,故：
> mkdir -p src/test/Java/com/thoughtworks/servlet/
> cd src/test/java/com/thoughtworks/servlet/
> touch EchoServletTest.java
package com.thoughtworks.servlet;
import static org.junit.Assert.*;
import org.junit.Test;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
public class EchoServletTest {
@Test
public void testEchoingParametersWithMultipleValues() throws Exception {
MockHttpServletRequest request = new MockHttpServletRequest();
MockHttpServletResponse response = new MockHttpServletResponse();
request.addParameter(“param1”, “value1”);
request.addParameter(“param2”, “value2”);
request.addParameter(“param3”, “value3”);
new EchoServlet().doGet(request, response);
String[] lines = response.getContentAsString().split(“\n”);
assertEquals(“Expected as many lines as We have parameter values”,
3, lines.length);
assertEquals(“param1=value1”, lines[0]);
assertEquals(“param2=value2”, lines[1]);
assertEquals(“param3=value3”, lines[2]);
}
}
3）编写gradle的配置文件 build.gradle
apply plugin: ‘idea’
apply plugin: ‘java’
repositories {
mavenCentral()
}
dependencies {
compile fileTree(dir: ‘libs’, include: ‘*.jar’)
testCompile ‘junit:junit:4.11’
}
以上代码使用可参考我的《Gradle-使用介绍》 http://www.linuxidc.com/Linux/2013-11/92611.htm
这里dir: ‘libs’加载本地的jar文件
> mkdir libs
然后将开头处提及的jar包放到libs目录下。
4) 运行gradle命令
> gradle build.gradle
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:jar UP-TO-DATE
:assemble UP-TO-DATE
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
:check UP-TO-DATE
:build UP-TO-DATE
BUILD SUCCESSFUL
Total time: 7.091 secs
生成和src/同级的build目录
build/
|- classes/
|- dependency-cache/
|- libs/
|- reports/
|- test-results/
|- tmp/
这里注意apply plugin: ‘idea’
指的是可以构建IntelliJ的idea工程。
> gradle idea
生成三个文件和一个目录
tdd.iml
tdd.ipr
tdd.iws
out/
|- production/
|- test/
之后可以通过IntelliJ open选项打开tdd工程。
到此就完成了使用gradle自动化构建servlet请求参数以文本形式回显的java工程。
