java 单元测试总结_给servlet写单元测试的总结

给servlet写单元测试的总结收藏

servlet的测试一般来说需要容器的支持，不是像通常的java类的junit测试一样简单，

下面通过对HelloWorld代码的测试阐述了几种servlet测试方法。

被测试的HelloWorld类的代码如下：

/**

* 被测试的servlet

*/

import java.io.IOException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.cactus.WebRequest;

import org.apache.cactus.server.HttpServletRequestWrapper;

public class HelloWorld extends HttpServlet{

public void saveToSession(HttpServletRequest request) {

request.getSession().setAttribute("testAttribute",request.getParameter("testparam"));

}

public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException{

String username=request.getParameter("username");

response.getWriter().write(username+":Hello World!");

}

public boolean authenticate(){

return true;

}

}

以HelloWorld为例，我总结了Servlet的多种测试方法如下：

一.使用HttpUnit测试

import com.meterware.httpunit.GetMethodWebRequest;

import com.meterware.httpunit.WebRequest;

import com.meterware.httpunit.WebResponse;

import com.meterware.servletunit.InvocationContext;

import com.meterware.servletunit.ServletRunner;

import com.meterware.servletunit.ServletUnitClient;

import junit.framework.Assert;

import junit.framework.TestCase;

public class HttpUnitTestHelloWorld extends TestCase {

protected void setUp() throws Exception {

super.setUp();

}

protected void tearDown() throws Exception {

super.tearDown();

}

public void testHelloWorld() {

try {

// 创建Servlet的运行环境

ServletRunner sr = new ServletRunner();

// 向环境中注册Servlet

sr.registerServlet("HelloWorld", HelloWorld.class.getName());

// 创建访问Servlet的客户端

ServletUnitClient sc = sr.newClient();

// 发送请求

WebRequest request = new GetMethodWebRequest("http: