基于Spring Java的Crystal Reports配置

Question

我对Crystal报表不熟悉，我创建了应用程序，在其中使用了一些Java注释配置。 现在，我试图与Crystal报表集成，在这里我必须将基于xml的web.xml转换为基于Java的配置，这是web.xml代码

<?xml version="1.0" encoding="UTF-8"?>
  <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                             http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
    <!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/appServlet/servlet-context.xml</param-value>
    </context-param>

    <!-- Creates the Spring Container shared by all Servlets and Filters -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- Processes application requests -->
    <servlet>
        <servlet-name>appServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/appServlet/servlet-context.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>appServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!-- crystal report in spring -->
    <context-param>
        <param-name>crystal_image_uri</param-name>
        <param-value>/crystalreportviewers</param-value>
    </context-param>
    <context-param>
        <param-name>crystal_image_use_relative</param-name>
        <param-value>webapp</param-value>
    </context-param>

    <servlet>
        <servlet-name>CrystalReportViewerHandler</servlet-name>
        <servlet-class>com.crystaldecisions.report.web.viewer.CrystalReportViewerServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>CrystalReportViewerHandler</servlet-name>
        <url-pattern>/CrystalReportViewerHandler</url-pattern>
        <url-pattern>/faces/CrystalReportViewerHandler</url-pattern>
    </servlet-mapping>

</web-app>

我尝试将其与java config混合使用，但失败，在此先感谢

Answer 1

要将基本的web.xml转换为Java配置，请通过创建一个类

• 实现WebApplicationInitializer或
• 扩展AbstractAnnotationConfigDispatcherServletInitializer

关于水晶报表，您可以使用@Bean Annotation创建CrystalReportViewerServlet类型的Bean。

有关更多信息，请检查-web.xml到java配置并在Spring中注册辅助servlet。

Answer 2

感谢所有寻求解决方案的人。 我做了以下

@Configuration
@ComponentScan(basePackages = { "t.g.app" })
public class ReportsConfig implements WebApplicationInitializer{

@Override
public void onStartup(ServletContext servletContext) throws ServletException{
    servletContext.setInitParameter("crystal_image_uri","/crystalreportviewers");
    servletContext.setInitParameter("crystal_image_use_relative", "webapp");
    ServletRegistration.Dynamic crystalReportViewerHandler = servletContext
              .addServlet("CrystalReportViewerHandler", new CrystalReportViewerServlet());

    crystalReportViewerHandler.setLoadOnStartup(1);
    crystalReportViewerHandler.addMapping("/CrystalReportViewerHandler");
    }
}

春季安全性还引起了一些安全性问题，因此我在安全性配置中添加了一些例外。