SpringBoot返回Json和Jsp页面数据

叁歲伎倆 2022-02-12 09:42 414阅读 0赞

# (一)SpringBoot返回json数据 #

1.  pom.xml引入依赖项

<parent>
            <artifactId>springboot_parent</artifactId>
            <groupId>cn.lzj.springboot</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>springboot_02_web</artifactId>
    
        <dependencies>
    
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
                <scope>provided</scope>
            </dependency>
    
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
            </dependency>
    
            
            
                
                
                
            
            
                
                
                
            
        </dependencies>

1.  controller

package cn.lzj.springboot.controller;
    
    import cn.lzj.springboot.domain.Person;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import java.util.Arrays;
    import java.util.Date;
    import java.util.List;
    
    /*
     * 如果使用@RestController   方法上面就可以不用再添加@ResponseBody和@Controller
     *       @RestController  相当于是@Controller + @ResponseBody
     * */
    @RestController //@RestController=@Controller+@ResponseBody 官方推荐使用
    @RequestMapping("/json2")
    public class JsonController2 {
    
        //字符串
        @RequestMapping("/str")
        public String json1(){
            return "this moment , the world has nothing to do with me";
        }
        //对象-日期
    
        @RequestMapping("/obj")
        public Person json2(){
                return new Person(1L,"木兰",new Date());
        }
    
        //数组
        @RequestMapping("/array")
        public List<Person> json3(){
            return Arrays.asList( new Person(1L,"工藤静香",new Date())
                    ,new Person(2L,"木村拓哉",new Date())
                    ,new Person(2L,"木村希美",new Date())
            );
        }
    }

注意设置日期的返回格式：

@JsonFormat(pattern = "yyyy-MM-dd hh:mm:ss",timezone = "GMT+8")
    public Date getBirthDay() {
        return birthDay;
    }

# (二)SpringBoot集成jsp #

1.  pom.xml

<parent>
            <artifactId>springboot_parent</artifactId>
            <groupId>cn.lzj.springboot</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>springboot_03_webjsp</artifactId>
        <packaging>war</packaging>
    
        <name>springboot_03_webjsp Maven Webapp</name>
        
        <url>http://www.example.com</url>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <maven.compiler.source>1.8</maven.compiler.source>
            <maven.compiler.target>1.8</maven.compiler.target>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
                <scope>provided</scope>
            </dependency>
    
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</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>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.11</version>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
        <build>
            <finalName>springboot_03_webjsp</finalName>
            <pluginManagement>
                <plugins>
                    <plugin>
                        <artifactId>maven-clean-plugin</artifactId>
                        <version>3.1.0</version>
                    </plugin>
                    
                    <plugin>
                        <artifactId>maven-resources-plugin</artifactId>
                        <version>3.0.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-compiler-plugin</artifactId>
                        <version>3.8.0</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-surefire-plugin</artifactId>
                        <version>2.22.1</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-war-plugin</artifactId>
                        <version>3.2.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-install-plugin</artifactId>
                        <version>2.5.2</version>
                    </plugin>
                    <plugin>
                        <artifactId>maven-deploy-plugin</artifactId>
                        <version>2.8.2</version>
                    </plugin>
                </plugins>
            </pluginManagement>
        </build>

1.  application.properties

spring.mvc.view.prefix=/WEB-INF/jsp/
    spring.mvc.view.suffix=.jsp

1.  Controller

package cn.lzj.springboot.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    @Controller
    @RequestMapping("/jsp")
    public class JspController {
    
        @RequestMapping("/index")
        public String jsp(Model model){
            model.addAttribute("msg", "木村拓哉");
            return "user/index";
        }
    }

1.  jsp页面准备

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    	<head>
    	    <title>哈哈</title>
    	</head>
    	<body>
    	  	${msg}
    	</body>
    </html>

![在这里插入图片描述][20190428170113507.png]

1.  SpringBoot的应用器

package cn.lzj.springboot;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    @SpringBootApplication
    public class WebJspApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(WebJspApplication.class);
        }
    }

> 注意：需要修改idea中年的configuration,否则无法进行访问  
> ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMTM2MjUw_size_16_color_FFFFFF_t_70]

[20190428170113507.png]: /images/20220212/80fb0e3c55f54c41b412b63dc5539de1.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMTM2MjUw_size_16_color_FFFFFF_t_70]: /images/20220212/ca6f45ec77d945109c96863e6e29b9bb.png