REST应用程序遵循REST体系结构方法。我们使用REST应用程序来开发和设计网络应用程序。它生成对数据执行CRUD操作的HTTP请求。通常，它以JSON或 XML 格式返回数据。
<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.ssfs</groupId> <artifactId>9-6-page</artifactId> <version>0.0.1-SNAPSHOT</version> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.0.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- JSTL for JSP spring boot搭建web项目，跳转到jsp一定要添加下面的jar包，否则出现跳转的时候，变成下载的功能，保存该页面 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency> <!-- Need this to compile JSP --> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> <scope>provided</scope> </dependency> <!-- DevTools in Spring Boot 项目热部署 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build> </project>
server.port=8089
spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp
<!DOCTYPE html> <html> <head> <title>Home page</title> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> <p> <a href="product">Get all Products</a> </p> </body> </html>
package temp; public class Product { private int id; private String pname; private String batchno; private double price; private int noofproduct; // default constructor public Product() { } // constructor using fields public Product(int id, String pname, String batchno, double price, int noofproduct) { super(); this.id = id; this.pname = pname; this.batchno = batchno; this.price = price; this.noofproduct = noofproduct; } // getters and setters public int getId() { return id; } public void setId(int id) { this.id = id; } public String getPname() { return pname; } public void setPname(String pname) { this.pname = pname; } public String getBatchno() { return batchno; } public void setBatchno(String batchno) { this.batchno = batchno; } public double getPrice() { return price; } public void setPrice(double price) { this.price = price; } public int getNoofproduct() { return noofproduct; } public void setNoofproduct(int noofproduct) { this.noofproduct = noofproduct; } }
package temp; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.servlet.ModelAndView; import temp.Product; import temp.ProductService; @Controller public class MyController { @Autowired private ProductService productService; @RequestMapping(value = "/index") public String homeIndex() { System.out.println("**************"); System.out.println("redirect to home page!"); return "homeee"; } @GetMapping(value = "/product") @ResponseBody public List<Product> getProduct() { // finds all the products System.out.println("redirect to home page!"); List<Product> products = productService.findAll(); // returns the product list return products; } @RequestMapping(value = "/home") public String home() { System.out.println("redirect to home page!"); return "index"; } @RequestMapping(value = "/home/page") @ResponseBody public ModelAndView goHome() { System.out.println("go to the home page!"); ModelAndView mode = new ModelAndView(); mode.addObject("name", "天生自然"); mode.setViewName("index"); return mode; } }
package temp; import java.util.ArrayList; import java.util.List; import org.springframework.stereotype.Service; import temp.IProductService; import temp.Product; @Service public class ProductService implements IProductService { @Override public List<Product> findAll() { // TODO Auto-generated method stub // creating an object of ArrayList ArrayList<Product> products = new ArrayList<Product>(); // adding products to the List products.add(new Product(100, "Mobile", "CLK98123", 9000.00, 6)); products.add(new Product(101, "Smart TV", "LGST09167", 60000.00, 3)); products.add(new Product(102, "Washing Machine", "38753BK9", 9000.00, 7)); products.add(new Product(103, "Laptop", "LHP29OCP", 24000.00, 1)); products.add(new Product(104, "Air Conditioner", "ACLG66721", 30000.00, 5)); products.add(new Product(105, "Refrigerator ", "12WP9087", 10000.00, 4)); // returns a list of product return products; } }
package temp; import java.util.List; import temp.Product; public interface IProductService { List<Product> findAll(); }
package temp; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class MySpringApplication { public static void main(String[] args) { SpringApplication.run(MySpringApplication.class); } }
