SpringBoot（二）spring-boot-web-jsp

springboot中使用jsp作为展示层的示例，其实这个东西 只要你自己愿意看文档 很好学的 ，大家都是边学边研究，

不会了看下官方的文档

官方文档地址：

http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#using-boot-running-your-application

官方还提供了直接生成项目的地址：https://start.spring.io/

本次使用的是自己通过myeclipse创建的maven项目，通过官方的文档将项目跑起来

具体如下maven的配置文件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>SpringBootWebToJSP</groupId>
  <artifactId>SpringBootWebToJSP</artifactId>
  <!-- 以war包形式发布 -->
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>SpringBootWebToJSP Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <!-- 引入的版本 -->
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.7.RELEASE</version>
  </parent>
  <dependencies>
    <!-- Compile -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
    </dependency>
    <!-- Provided -->
    <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>
      <scope>provided</scope>
    </dependency>
    <!-- Test -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
    </dependency>
  </dependencies>
  <build>
  <!-- 定义项目的名字  也可以不适用此配置 ，自动生成的项目名字 后边会带一串数字 不方便 -->
    <finalName>SpringBootWebToJSP</finalName>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <configuration>
          <useSystemClassLoader>false</useSystemClassLoader>
        </configuration>
      </plugin>
    </plugins>
  </build>

</project>

上述配置 如果不想使用 war的形式运行 可以改为jar的形式

​​启动类SampleWebJspApplication.java​​  SampleWebJspApplication.java

package com.julongtech.action;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;

/**
 * 主程序启动类 SpringBootServletInitializer  web程序需要继承
 * @author julong
 * @date 2017-8-22 上午11:51:18
 */
@SpringBootApplication
public class SampleWebJspApplication extends SpringBootServletInitializer {

  @Override
  protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
    return application.sources(SampleWebJspApplication.class);
  }

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

}

package com.julongtech.action;

import java.util.Date;
import java.util.Map;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * 页面跳转类
 * @author julong
 * @date 2017-8-22 上午11:52:23
 */
@Controller
public class WelcomeController {

  @Value("${application.message:Hello World}")
  private String message = "Hello World";

  @GetMapping("/")
  public String welcome(Map<String, Object> model) {
    model.put("time", new Date());
    model.put("message", this.message);
    return "welcome";
  }

  @RequestMapping("/foo")
  public String foo(Map<String, Object> model) {
    throw new RuntimeException("Foo");
  }
  @RequestMapping("/foot")
  public String foot(Map<String, Object> model) {
    System.out.println("123");
    model.put("time", new Date());
    model.put("message", this.message);
    return "welcome";
  }

}

你还需要在 src/main/resource/application.properties创建 application.properties文件 如果你使用的是 spring官方提供的工具生成的项目可以忽略此，只需要在文件中添加配置即可 ：有人说 使用“：” 有人说使用“=” 其实两个都可以 我试过了 ，官方的示例是 ： 文档中是 =

spring.mvc.view.prefix: /WEB-INF/jsp/
spring.mvc.view.suffix: .jsp
application.message: Hello julong

jsp页面 welcome.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE html>

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<html lang="en">

<body>
  <c:url value="/resources/text.txt" var="url"/>
  <spring:url value="/resources/text.txt" htmlEscape="true" var="springUrl" />
  Spring URL: ${springUrl} at ${time}
  <br>
  JSTL URL: ${url}
  <br>
  Message: ${message}
</body>

</html>

书写完毕后 点击项目 运行  ，本文使用的jdk1.7

启动后如下：

.   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.4.7.RELEASE)

2017-08-22 14:40:24.690  INFO 1488 --- [           main] c.j.action.SampleWebJspApplication       : Starting SampleWebJspApplication on julong-841deb9b with PID 1488 (started by Administrator in D:\Workspaces\OWER\SpringBootWebToJSP Maven Webapp)
2017-08-22 14:40:24.690  INFO 1488 --- [           main] c.j.action.SampleWebJspApplication       : No active profile set, falling back to default profiles: default
2017-08-22 14:40:24.752  INFO 1488 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@186616b: startup date [Tue Aug 22 14:40:24 CST 2017]; root of context hierarchy
2017-08-22 14:40:26.018  INFO 1488 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-08-22 14:40:26.034  INFO 1488 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2017-08-22 14:40:26.034  INFO 1488 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.15
2017-08-22 14:40:26.268  INFO 1488 --- [ost-startStop-1] org.apache.jasper.servlet.TldScanner     : At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
2017-08-22 14:40:26.268  INFO 1488 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2017-08-22 14:40:26.268  INFO 1488 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1531 ms
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2017-08-22 14:40:26.706  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@186616b: startup date [Tue Aug 22 14:40:24 CST 2017]; root of context hierarchy
2017-08-22 14:40:26.768  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/foo]}" onto public java.lang.String com.julongtech.action.WelcomeController.foo(java.util.Map<java.lang.String, java.lang.Object>)
2017-08-22 14:40:26.768  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/foot]}" onto public java.lang.String com.julongtech.action.WelcomeController.foot(java.util.Map<java.lang.String, java.lang.Object>)
2017-08-22 14:40:26.768  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/],methods=[GET]}" onto public java.lang.String com.julongtech.action.WelcomeController.welcome(java.util.Map<java.lang.String, java.lang.Object>)
2017-08-22 14:40:26.784  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2017-08-22 14:40:26.784  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2017-08-22 14:40:26.799  INFO 1488 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-08-22 14:40:26.799  INFO 1488 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-08-22 14:40:26.846  INFO 1488 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-08-22 14:40:26.971  INFO 1488 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2017-08-22 14:40:27.018  INFO 1488 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2017-08-22 14:40:27.034  INFO 1488 --- [           main] c.j.action.SampleWebJspApplication       : Started SampleWebJspApplication in 2.891 seconds (JVM running for 3.141)

.   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.4.7.RELEASE)

2017-08-22 14:40:24.690  INFO 1488 --- [           main] c.j.action.SampleWebJspApplication       : Starting SampleWebJspApplication on julong-841deb9b with PID 1488 (started by Administrator in D:\Workspaces\OWER\SpringBootWebToJSP Maven Webapp)
2017-08-22 14:40:24.690  INFO 1488 --- [           main] c.j.action.SampleWebJspApplication       : No active profile set, falling back to default profiles: default
2017-08-22 14:40:24.752  INFO 1488 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@186616b: startup date [Tue Aug 22 14:40:24 CST 2017]; root of context hierarchy
2017-08-22 14:40:26.018  INFO 1488 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-08-22 14:40:26.034  INFO 1488 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2017-08-22 14:40:26.034  INFO 1488 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.15
2017-08-22 14:40:26.268  INFO 1488 --- [ost-startStop-1] org.apache.jasper.servlet.TldScanner     : At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
2017-08-22 14:40:26.268  INFO 1488 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2017-08-22 14:40:26.268  INFO 1488 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1531 ms
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-08-22 14:40:26.424  INFO 1488 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2017-08-22 14:40:26.706  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@186616b: startup date [Tue Aug 22 14:40:24 CST 2017]; root of context hierarchy
2017-08-22 14:40:26.768  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/foo]}" onto public java.lang.String com.julongtech.action.WelcomeController.foo(java.util.Map<java.lang.String, java.lang.Object>)
2017-08-22 14:40:26.768  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/foot]}" onto public java.lang.String com.julongtech.action.WelcomeController.foot(java.util.Map<java.lang.String, java.lang.Object>)
2017-08-22 14:40:26.768  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/],methods=[GET]}" onto public java.lang.String com.julongtech.action.WelcomeController.welcome(java.util.Map<java.lang.String, java.lang.Object>)
2017-08-22 14:40:26.784  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2017-08-22 14:40:26.784  INFO 1488 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2017-08-22 14:40:26.799  INFO 1488 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-08-22 14:40:26.799  INFO 1488 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-08-22 14:40:26.846  INFO 1488 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-08-22 14:40:26.971  INFO 1488 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2017-08-22 14:40:27.018  INFO 1488 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2017-08-22 14:40:27.034  INFO 1488 --- [           main] c.j.action.SampleWebJspApplication       : Started SampleWebJspApplication in 2.891 seconds (JVM running for 3.141)

启动成功后 访问：http://localhost:8080/foot