【发布时间】：2017-03-07 13:43:52
【问题描述】：
我正在尝试使用 Spring Boot/Hibernate/MySQL 构建 Web 应用程序，但我有一个异常运行它：
这个应用程序没有明确的 /error 映射，所以你看到 这是一个后备。
2016 年 10 月 25 日星期二 16:05:16 EEST 出现意外错误（type=Not 已找到，状态=404)。
谁能告诉我我做错了什么？ 我的消息来源：
@Configuration
@ComponentScan
@EnableAutoConfiguration
public class SpringBootWebApplication{
public static void main(String[] args) {
SpringApplication.run(SpringBootWebApplication.class, args);
}
}
@Configuration
@EnableWebMvc
public class MVCconfiguration extends WebMvcConfigurerAdapter {
@Bean
public InternalResourceViewResolver getViewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/");
resolver.setSuffix(".jsp");
return resolver;
}
@Override
public void configureDefaultServletHandling(
DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
}
poom.file
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com</groupId>
<artifactId>lardi</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>Phone Book</name>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<start-class>com.SpringBootWebApplication</start-class>
<!-- JSON -->
<jackson-json.version>2.8.0</jackson-json.version>
<!-- WEB jars -->
<webjars-bootstrap.version>3.3.6</webjars-bootstrap.version>
<webjars-jquery.version>2.2.4</webjars-jquery.version>
<webjars-noty.version>2.3.8</webjars-noty.version>
<webjars-datatables.version>1.10.12</webjars-datatables.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.1.RELEASE</version>
</parent>
<dependencies>
<!-- Spring Boot WEB -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<!-- Spring Boot TEST -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- Spring Boot Security -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- Spring Boot JPA -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
</dependency>
<!-- MySQL -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!-- JSON -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson-json.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-hibernate5</artifactId>
<version>${jackson-json.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
<version>${jackson-json.version}</version>
</dependency>
<!-- Webjars -->
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap</artifactId>
<version>${webjars-bootstrap.version}</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>jquery</artifactId>
<version>${webjars-jquery.version}</version>
</dependency>
<dependency>
<groupId>org.webjars.bower</groupId>
<artifactId>noty</artifactId>
<version>${webjars-noty.version}</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>datatables</artifactId>
<version>${webjars-datatables.version}</version>
</dependency>
</dependencies>
</project>
Spring 身份验证禁用：
@Configuration
@EnableWebMvc
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.csrf().disable()
.authorizeRequests()
.antMatchers(HttpMethod.OPTIONS, "/**").permitAll()
.antMatchers(HttpMethod.GET, "/**").permitAll()
.antMatchers(HttpMethod.POST, "/**").permitAll()
.antMatchers(HttpMethod.PUT, "/**").permitAll()
.antMatchers(HttpMethod.DELETE, "/**").permitAll()
.anyRequest().authenticated()
.and()
.httpBasic();
}
控制器
@Controller
public class RootController extends AbstractContactController{
@RequestMapping(value = "/", method = RequestMethod.GET)
public String root() {
return "redirect:contacts";
}
@RequestMapping(value = "/contacts", method = RequestMethod.GET)
public String contactList() {
return "contactList";
}
}
还有.jsp文件
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
Hello!
</body>
</html>
【问题讨论】：
-
您是否尝试过不重定向直接打开/contacts？您收到的错误说明由于某种原因您的 http 请求无法映射到您的 RequestMapping 方法。
-
首先，更改 return "redirect:contacts";返回“重定向：/联系人”；您可以简单地在请求的方法中添加记录器来检查它是否有效。请同时阅读这部分文档：docs.spring.io/spring-boot/docs/current/reference/htmlsingle/… Spring Boot 不建议使用 jsp 文件。
-
您是否有多个请求映射到“/error”？
-
我尝试了一切，但仍然有同样的例外。我觉得我的根控制器不想收到请求，但我不知道为什么。谁能告诉我？
标签： mysql spring hibernate spring-security spring-boot