Question

我有一个基于Spring 4.3.20和Hibernate 3.6构建的现有应用程序，我们在XML配置中使用protected void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); Button button = findViewById(R.id.your_button); //This will give NullPointerException as you're trying to find //button before activity gets any layout to work with setContentView(R.layout.activity_main); }进行控制器映射，并且运行良好。

我从较小的步骤开始，没有进行任何更改，只是将我的maven项目仅移至spring-boot依赖项（没有SimpleUrlHandlerMapping带注释的文件），并且一切正常。现在，我开始将@SpringBootApplication的内容移动到web.xml文件中，但是它不起作用，不确定我丢失了什么。

控制器

SpringBootApplication

dispatcher-servlet.xml

public class AuthController extends MultiActionController {
public ModelAndView test(HttpServletRequest request, HttpServletResponse response) throws ServletException {
        return new ModelAndView("jsonView","model",<data in string>,);
    }
}

views.xml

<beans>
    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>                
                <prop key="AuthController/*.do">AuthController</prop>
</props>
        </property>
        <property name="interceptors">
            <list>
                <ref bean="openSessionInViewInterceptor" />
            </list>
        </property>    
            </bean>

</beans>

JsonView.java

<bean name="jsonView" class="com.mycompany.views.JsonView">
        <property name="contentType">
            <value>text/html; charset=ISO-8859-1</value>
        </property>
    </bean>

我们已为SpringBootApplication删除的

web.xml 内容

public class JsonView extends AbstractView {
    boolean validSession = true;

    public void setValidSession(boolean validSession) {
        this.validSession = validSession;
    }

    protected void renderMergedOutputModel(Map map,
            HttpServletRequest request, HttpServletResponse response) throws Exception {
        String model = (String) map.get("model");

        try {
            JSONObject jobj = new JSONObject(model);
            if (jobj.has("msg")) {
                if (jobj.getString("msg").toLowerCase().contains("system failure:")) {
                    jobj.remove("msg");
                    jobj.put("msg", "Some problem occurred while performing the operation. Please try again later.");
                    model = jobj.toString();
                }
            }
        } catch (JSONException je) {
            model = (String) map.get("model");
        }
        model = "{\"valid\":" + this.validSession + ",\"data\":" + model + ",\"success\":true}";
        response.getOutputStream().write(model.getBytes());
        response.setContentType("text/html; charset=UTF-8");
    }

SpringBootApplication

<listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:config/applicationContextList.xml</param-value>
    </context-param>
<servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:config/dispatcher-servlet.xml</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>

applicationContext-view.xml

@SpringBootApplication(exclude = { DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class })
@ImportResource("classpath*:config/applicationContextList.xml")
public class MainSpringBootApplication extends SpringBootServletInitializer{

    public static void main(String[] args) {
        SpringApplication.run(MainSpringBootApplication.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(MainSpringBootApplication.class);
    }
@Bean
    public DispatcherServlet dispatcherServlet() {
        return new DispatcherServlet();
    }

    @Bean
    public ServletRegistrationBean dispatcherServletRegistration() {
        ServletRegistrationBean registration = new ServletRegistrationBean(dispatcherServlet());
        Map<String,String> params = new HashMap<String,String>();
        params.put("contextClass","org.springframework.web.context.support.AnnotationConfigWebApplicationContext");
        params.put("contextConfigLocation","classpath:config/dispatcher-servlet.xml");
                registration.setInitParameters(params);
        registration.addUrlMappings("*.do");
        registration.addUrlMappings("/props/*");
        return registration;
    }

applicationContextList.xml

<bean id="xmlViewResolver" class="org.springframework.web.servlet.view.XmlViewResolver">
        <property name="order" value="1" /> 
        <property name = "location">
         <value>/WEB-INF/views.xml</value>
      </property>
    </bean>

当js调用<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"> <import resource="applicationContext.xml" /> <import resource="applicationContext-view.xml" /> </beans>时，它会产生404错误，而在没有SpringBootApplication和仅AuthController.test.do的情况下可以正常工作

当我执行所需的服务时，我得到以下日志：

web.xml

迁移后，旧的调度程序Servlet无法在Spring Boot中工作

0 个答案: