虚位以待(AD)
虚位以待(AD)
首页 > 网络编程 > JSP编程 > 详解SpringBoot集成jsp(附源码)+遇到的坑

详解SpringBoot集成jsp(附源码)+遇到的坑
类别:JSP编程   作者:码皇   来源:互联网   点击:

本篇文章主要介绍了SpringBoot集成jsp(附源码)+遇到的坑,小编觉得挺不错的,现在分享给大家,也给大家做个参考。一起跟随小编过来看看吧

本文介绍了SpringBoot集成jsp(附源码)+遇到的坑 ,分享给大家

1、大体步骤

(1)创建Maven web project;

(2)在pom.xml文件添加依赖;

(3)配置application.properties支持jsp

(4)编写测试Controller

(5)编写JSP页面

(6)编写启动类App.java

2、新建SpringInitialzr

3、pom文件

    <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies>

4、application.properties文件

    # 页面默认前缀目录spring.mvc.view.prefix=/WEB-INF/jsp/# 响应页面默认后缀spring.mvc.view.suffix=.jsp# 自定义属性,可以在Controller中读取application.hello=Hello GOD

5、Controller文件

    package com.example;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import java.util.Map;
    /** * Created by Gensis on 2016/9/9. */@Controllerpublic class HelloController {
    // 从 application.properties 中读取配置,如取不到默认值为Hello @Value("${
    application.hello:Hello}
    ") private String hello;
    @RequestMapping("/helloJsp") public String helloJsp(Map<String, Object> map) {
    System.out.println("HelloController.helloJsp().hello=" + hello);
    map.put("hello", hello);
    return "helloJsp";
    }
    }

6、jsp页面

    <%@ page language="java" contentType="text/html;
    charset=UTF-8"pageEncoding="UTF-8" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html;
    charset=UTF-8"><title>GOD</title></head><body>helloJsp<hr>${
    hello}
    </body></html>

7、遇到的问题

1、Spring Boot: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean

把pom中所有的<scope>provided</scope>注释掉

2、报404

  <1>注意controller和restcontroller区别

  <2>检查application.properties

  <3>检查pom是否缺支持jsp包

3、Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer

    org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.example.SampleWebJspApplication];
    nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:187) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:321) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:243) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:98) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:681) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:523) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:313) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE] at com.example.SampleWebJspApplication.main(SampleWebJspApplication.java:20) [classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_77] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_77] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_77] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_77] at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) [idea_rt.jar:na]Caused by: java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:163) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:301) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:237) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:204) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:173) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE] ... 17 common frames omitted

 解决方案:添加以下依赖

    <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> </dependency>

4、java.lang.NoClassDefFoundError: javax/servlet/ServletContext 

    Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletContext at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_77] at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_77] at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_77] at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:152) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE] ... 21 common frames omittedCaused by: java.lang.ClassNotFoundException: javax.servlet.ServletContext at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_77] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_77] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_77] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_77] ... 25 common frames omitted

解决方案:添加 

    <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency>

删除其他依赖中的<scope>provided</scope>

8、源码地址

https://github.com/Genesisxu/SpringSeries/tree/master/SpringBoot-jsp

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

相关热词搜索: SpringBoot集成jsp