java - Servlet DispatcherServlet 的 Servlet.init() 抛出异常-6ren

java - Servlet DispatcherServlet 的 Servlet.init() 抛出异常

转载作者：行者123 更新时间：2023-12-02 05:03:26

我有一个使用 Spring MVC 的 Web 应用程序，它从数据库 (postgresql) 获取数据并以 HTML 格式输出。我尝试运行一个简单的程序，但出现以下错误。我正在使用 JDK 8、Tomcat 8、Intellij IDEA尝试了很多方法，但对我没有帮助。

type Exception report

message Servlet.init() for servlet dispatcherServlet threw exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet.init() for servlet dispatcherServlet threw exception
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:534)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:277)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2381)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2370)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)
root cause

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mainController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.springapp.mvc.dao.SchoolDAO com.springapp.mvc.controller.MainController.schoolDAO; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.springapp.mvc.dao.SchoolDAO] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1204)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:725)
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:534)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:277)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2381)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2370)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)
root cause

org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.springapp.mvc.dao.SchoolDAO com.springapp.mvc.controller.MainController.schoolDAO; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.springapp.mvc.dao.SchoolDAO] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:555)
    org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1204)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:725)
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:534)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:277)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2381)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2370)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)
root cause

org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.springapp.mvc.dao.SchoolDAO] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1261)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1009)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:904)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:527)
    org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1204)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:725)
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:534)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:277)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2381)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2370)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)

我的 DAOImpl

package com.springapp.mvc.dao;

import com.springapp.mvc.model.School;

import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

public class SchoolDAOImpl implements SchoolDAO {

    private DataSource dataSource;

    public void setDataSource(DataSource dataSource) {
        this.dataSource = dataSource;
    }

    @Override
    public List<School> list() {
        String query = "select * from test.school";
        List<School> listSchools = new ArrayList<School>();
        Connection con = null;
        PreparedStatement ps = null;
        ResultSet rs = null;
        try{
            con = dataSource.getConnection();
            ps = con.prepareStatement(query);
            rs = ps.executeQuery();
            while(rs.next()){
                School aSchool = new School();
                aSchool.setSchool__id(rs.getInt("school__id"));
                aSchool.setUid(rs.getString("uid"));
                aSchool.setGeom(rs.getString("geom"));
                aSchool.setP8c8d9d76(rs.getString("p8c8d9d76"));
                aSchool.setP1bbc78dc(rs.getInt("p1bbc78dc"));
                listSchools.add(aSchool);
            }
        }catch(SQLException e){
            e.printStackTrace();
        }finally{
            try {
                rs.close();
                ps.close();
                con.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        return listSchools;
    }
}

主 Controller

@Controller
public class MainController {

    @Autowired
    private SchoolDAO schoolDAO;

    @RequestMapping(value="/" )
    public  ModelAndView listContact(ModelAndView model) throws IOException{
        List<School> listSchools = schoolDAO.list();
        model.addObject("listSchools", listSchools);
        model.setViewName("home");

        return model;
    }
}

Spring 配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
       <context:annotation-config />

       <context:component-scan base-package="com.springapp.mvc" />

       <bean id="viewResolver"
             class="org.springframework.web.servlet.view.InternalResourceViewResolver">
              <property name="prefix" value="/WEB-INF/pages/" />
              <property name="suffix" value=".jsp" />
       </bean>

       <bean id="schoolDAO" class="com.springapp.mvc.dao.SchoolDAOImpl">
              <property name="dataSource" ref="dataSource" />
       </bean>

       <bean id="dataSource"
             class="org.springframework.jdbc.datasource.DriverManagerDataSource">
              <property name="driverClassName" value="org.postgresql.Driver" />
              <property name="url" value="jdbc:postgresql://localhost:5432/testdb" />
              <property name="username" value="root" />
              <property name="password" value="root" />
       </bean>
</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    <display-name>SpringMVC</display-name>
    <context-param>
        <param-name>contextClass</param-name>
        <param-value>
            org.springframework.web.context.support.AnnotationConfigWebApplicationContext
        </param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextClass</param-name>
            <param-value>
                org.springframework.web.context.support.AnnotationConfigWebApplicationContext
            </param-value>
        </init-param>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>com.springapp.mvc</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <session-config>
        <session-timeout>30</session-timeout>
    </session-config>
</web-app>

Maven pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.springapp</groupId>
    <artifactId>TASK</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>TASK</name>

    <properties>
        <spring.version>4.1.1.RELEASE</spring.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.1</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib-nodep</artifactId>
            <version>2.2.2</version>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>

        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>2.3.1</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>9.3-1102-jdbc41</version>
        </dependency>
    </dependencies>

    <build>
        <finalName>TASK</finalName>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <includes>
                        <include>**/*Tests.java</include>
                    </includes>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

最佳答案

尝试在类SchoolDAOImpl上添加注释@Component

关于java - Servlet DispatcherServlet 的 Servlet.init() 抛出异常，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28030471/

文章推荐： Java正则表达式匹配单词的开头？

文章推荐： java - 在 Apache Jena 中聚合

文章推荐： java - 页面工厂模式和下拉列表

文章推荐： java - ASM 辅助类来缓存所有指令

java - Spring Boot 应用程序卡在 : Initializing Spring DispatcherServlet 'dispatcherServlet'
我正在将 Spring Boot 应用程序从版本 1.5.6 升级到 2.1.1。当我启动应用程序时，它卡在这一行: INFO: Initializing Spring DispatcherServl
具有多个 DispatcherServlet 的 Spring Boot，每个 DispatcherServlet 都有自己的 @Controller
基本上我想将我的应用程序分成两部分。每个部分都有自己的安全内容和自己的 @Controller。 @Services 应该可以从两个部分访问。所以我想，我应该得到 2 个 DispatcherSer
java - 在 DispatcherServlet 中未找到名称为 'dispatcherServlet' 的 URI [/user] 的 HTTP 请求的映射
我正在 Eclipse 中使用 Spring boot、Java 8 制作 RESTful 服务。每当我尝试从 Postman(或任何其他地方)发送 HTTP 请求时，我都会收到 404 未找到代码。
java - Spring 配置 : No mapping found for HTTP request with URI in DispatcherServlet with name 'dispatcherServlet'
我认为配置文件中缺少某些内容，但我看不到。当我在浏览器中输入 --> localhost:8080/Procura/notifications --> 我在控制台中输入这个 -->org.sprin
java - 警告 : No mapping found for HTTP request with URI [/mvc/add] in DispatcherServlet with name 'dispatcherservlet'
我看到类似的问题并尝试将 URL 从/* 映射到/但它不起作用。我也尝试过直接从浏览器访问该 URL，但也不起作用。我是 Spring 新手，有人可以帮助我吗？ Archetype C
java - Null ModelAndView 返回到 DispatcherServlet，名称为 'dispatcherServlet' : assuming HandlerAdapter completed request handling
大家好，因为这是我的 Controller 类，当我在 postman 中运行此应用程序时，它的显示状态为 200 ok。但是文件未读取，我如何将带有扩展名的文件名作为方法中的字符串参数传递？我缺少您
java - Spring Boot，Java Config - 在 DispatcherServlet 中找不到带有 URI [/...] 的 HTTP 请求的映射，名称为 'dispatcherServlet'
这在 stackOverflow 中是一个很常见的问题，但没有一个相同问题的主题能解决我的问题。我们有一个使用 xml 配置的模板配置，但现在我们正试图摆脱它并开始使用 Java 配置。所以我有一
java - 在名称为 'dispatcherServlet' 的 DispatcherServlet 中找不到具有 URI [/WEB-INF/views/welcome.jsp] 的 HTTP 请求的映射
这个问题在这里已经有了答案: Why does Spring MVC respond with a 404 and report "No mapping found for HTTP request
java - 在名称为 'dispatcherServlet' 的 DispatcherServlet 中找不到具有 URI [/WEB-INF/pages/MainPage.jsp] 的 HTTP 请求的映射
这个问题在这里已经有了答案: Why does Spring MVC respond with a 404 and report "No mapping found for HTTP request
java - DispatcherServlet noHandlerFound
我一直在使用 Spring MVC 4/hibernate 4 和 Web flow 2.4 以及 Java 配置来构建应用程序。我使用 JUnits 构建和测试了服务和 daos，但在向应用程序添加
spring - 如何为资源使用第二个 DispatcherServlet
配置 Tomcat 7.0.47 上的 Servlet 3.0 Spring 3.1 问题我有一个比较特殊的情况，我需要两个 DispatcherServlets : 一个处理资源请求，一个处理正常
spring - Spring DispatcherServlet 与过滤器的关系
Spring MVC 使用 DispatcherServlet 将控制路由到适当的 Controller 。但是过滤器在哪里适合流程？如果我指定一个过滤器来执行 session 管理或身份验证，过滤器
spring - 无法将 dispatcherServlet 映射到上下文根
这是我用于 spring mvc 的当前配置: 1- web.xml: spring org.springframework.web.servlet.DispatcherServ
java - DispatcherServlet 未将我的请求转发给 Controller
我正在使用 Spring 框架来编写 Web 服务应用程序。应用程序中没有 html 或 jsp 页面。它是纯粹的网络服务。这是我的 Controller 类 @RequestMapping("/*
java - 不使用扩展在 DispatcherServlet 中找不到映射
我收到消息“请求的资源 () 不可用。”当转到我使用 DispatcherServlet 映射的 url 时。以前，当我将映射设置为使用 .do 扩展名时，它可以工作，但是当我在没有扩展名的情况下进行
java - DispatcherServlet 未重定向到适当的 View
在请求适当的 View 时，我不断收到 404 not found HTTP 响应。这些是我的配置文件。 web.xml ssytem-ecommerce-pro
java - DispatcherServlet 中的 ThreadLocal
我有一个带有 javascript UI 的 Spring MVC (v4.1.3) Web 应用程序。我已经实现了一个自定义 DispatcherServlet 并在 web.xml 中配置了相同的
java - 使用 DispatcherServlet 刷新页面后停止提交表单
我在我的 Controller 中使用了 request.getRequestDispatcher(url).forward(request, response) 方法!!我有麻烦了。 (我知道调度程
json - 在 DIspatcherServlet 中找不到映射
几天来我一直在与这条消息作斗争，无法弄清楚我错在哪里。基本上我想做的是在我的服务中提供 json。我对返回 jsp 不感兴趣。我请求的网址是 localhost/service/products/
java - FrameworkServlet 'DispatcherServlet' 需要处理很多请求
Spring + Angular 文件上传。尝试上传另一个文件时出现 HTTP - 417 错误时只能上传文件。在第一次上传后启动服务器后，在 tomcat 上我收到以下消息 - Framewo

行者123

个人简介

我是一名优秀的程序员,十分优秀！

作者热门文章

滴滴打车优惠券免费领取

全站热门文章

首页

博学

6Ren·AI

商城

java - Servlet DispatcherServlet 的 Servlet.init() 抛出异常