提交用例

spring-boot/spring-boot-tomcat/pom.xml

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+<?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>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.1.1.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.heibaiying</groupId>
+    <artifactId>spring-boot-tomcat</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>spring-boot-tomcat</name>
+    <description>boot-tomcat project for Spring Boot</description>
+
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <!--排除依赖 使用外部tomcat容器启动-->
+            <exclusions>
+                <exclusion>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-starter-tomcat</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <!--使用外置容器时候SpringBootServletInitializer 依赖此包 -->
+            <groupId>javax.servlet</groupId>
+            <artifactId>servlet-api</artifactId>
+            <version>2.5</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

spring-boot/spring-boot-tomcat/src/main/java/com/heibaiying/springboottomcat/SpringBootTomcatApplication.java

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+package com.heibaiying.springboottomcat;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
+
+
+/**
+ * 如果用外置tomcat,启动报错java.lang.NoClassDefFoundError: javax/el/ELManager
+ * 是因为tomcat 7.0 el-api包中没有ELManager类 , 切换tomcat 为8.0 以上版本即可
+ */
+@SpringBootApplication
+public class SpringBootTomcatApplication extends SpringBootServletInitializer {
+
+
+    @Override
+    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
+        //传入SpringBoot应用的主程序
+        return application.sources(SpringBootTomcatApplication.class);
+    }
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootTomcatApplication.class, args);
+    }
+
+}
+

spring-boot/spring-boot-tomcat/src/main/java/com/heibaiying/springboottomcat/bean/Programmer.java

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+package com.heibaiying.springboottomcat.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDate;
+
+/**
+ * @author : heibaiying
+ */
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class Programmer {
+
+    private String name;
+
+    private int age;
+
+    private float salary;
+
+    private LocalDate birthday;
+}

spring-boot/spring-boot-tomcat/src/main/java/com/heibaiying/springboottomcat/controller/JspController.java

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+package com.heibaiying.springboottomcat.controller;
+;
+import com.heibaiying.springboottomcat.bean.Programmer;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import java.time.LocalDate;
+
+/**
+ * @author : heibaiying
+ */
+
+@Controller
+@RequestMapping("index")
+public class JspController {
+
+    @RequestMapping
+    public String jsp(Model model){
+        Programmer programmer = new Programmer("heibai", 21, 1298.31f, LocalDate.now());
+        model.addAttribute("programmer",programmer);
+        return "show";
+    }
+}

spring-boot/spring-boot-tomcat/src/main/resources/application.yml

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+spring:
+  mvc:
+    view:
+      prefix: /WEB-INF/jsp/
+      suffix: .jsp

spring-boot/spring-boot-tomcat/src/main/webapp/WEB-INF/jsp/show.jsp

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+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <title>programmer</title>
+    <link rel="stylesheet" href="${pageContext.request.contextPath}/css/show.css">
+</head>
+<body>
+<ul>
+    <li>姓名: ${programmer.name}</li>
+    <li>年龄: ${programmer.age}</li>
+</ul>
+</body>
+</html>

spring-boot/spring-boot-tomcat/src/main/webapp/css/show.css

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+li{
+    font-size: 30px;
+    color: blueviolet;
+}

spring-boot/spring-boot-tomcat/src/test/java/com/heibaiying/springboottomcat/SpringBootTomcatApplicationTests.java

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+package com.heibaiying.springboottomcat;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringBootTomcatApplicationTests {
+
+    @Test
+    public void contextLoads() {
+    }
+
+}
+