How to write javaweb in webstorm

To write Java Web in WebStorm: Create a Java EE Web application project. Configure the web module. Create Servlet. Configure the servlet. Write Servlet code. Configure web.xml (optional, when using @WebServlet annotation). Run the application.

How to write Java Web in WebStorm

Step 1: Create a Java Web project

• Open WebStorm, click "File" > "New" > "Project".
• Select "Java Enterprise" > "Java EE Web Application".
• Name your project and choose a location.

Step 2: Configure the Java EE module

• In the project view, right-click the project and select Add>Java EE module".
• Select "Web Module".
• Name the web module and choose a path.

Step 3: Create Servlet

• Right-click on the Web module and select "New" > "Servlet".
• Name the Servlet and choose a class name.
• Select the "Annotation" method (servlet 3.0 or higher).

Step 4: Configure Servlet

• In the Servlet class, add the following annotations:

  <code>@WebServlet(name = "MyServlet", urlPatterns = "/my-servlet")</code>

• Among them:

  • name: The name of the Servlet.
  • urlPatterns: URL pattern of Servlet.

Step 5: Write Servlet code

• In the Servlet class, override the following method:

  <code>@Override
  protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    // 处理 GET 请求
  }
  
  @Override
  protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    // 处理 POST 请求
  }</code>

Step 6: Configure web.xml

##In the root directory of the Web module, open
• web. xml file.
• Add the following code snippet:

  <code><servlet>
    <servlet-name>MyServlet</servlet-name>
    <servlet-class>com.example.MyServlet</servlet-class>
  </servlet>
  
  <servlet-mapping>
    <servlet-name>MyServlet</servlet-name>
    <url-pattern>/my-servlet</url-pattern>
  </servlet-mapping></code>

• Where:
  • servlet-name: with Servlet Names in classes match.
  • servlet-class: The fully qualified class name of the Servlet class.
  • url-pattern: Matches the URL pattern in the Servlet annotation.

Step 7: Run the application

In the main menu, click "Run" > run".
• Select the corresponding running configuration.
• The application will be started on the server (usually Tomcat).

Tips:

When using the
• @WebServlet annotation, there is no need to configure web.xml .
You can use WebStorm's code hints and auto-complete features to write Servlet code.
• It is recommended to use Maven or Gradle projects to manage dependencies.

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