SpringMVC——REST风格

目录

1.基本使用

1.1REST简介​编辑

1.2 入门案例

1.3 RESTful入门小结

2. RESTful快速开发

3. REST数据交互案例

3.1 后台接口

3.2 页面访问处理

静态资源放行

3.3 页面后台绑定

---

1.基本使用

1.1REST简介

1.2 入门案例

@Controller
public class UserController {

    //设置当前请求方法为POST，表示REST风格中的添加操作
    @RequestMapping(value = "/users",method = RequestMethod.POST)
    @ResponseBody
    public String save(){
        System.out.println("user save...");
        return "{'module':'user save'}";
    }

    //设置当前请求方法为DELETE，表示REST风格中的删除操作
    //@PathVariable注解用于设置路径变量（路径参数），要求路径上设置对应的占位符，并且占位符名称与方法形参名称相同
    @RequestMapping(value = "/users/{id}",method = RequestMethod.DELETE)
    @ResponseBody
    public String delete(@PathVariable Integer id){
        System.out.println("user delete..." + id);
        return "{'module':'user delete'}";
    }

    //设置当前请求方法为PUT，表示REST风格中的修改操作
    @RequestMapping(value = "/users",method = RequestMethod.PUT)
    @ResponseBody
    public String update(@RequestBody User user){
        System.out.println("user update..."+user);
        return "{'module':'user update'}";
    }

    //设置当前请求方法为GET，表示REST风格中的查询操作
    //@PathVariable注解用于设置路径变量（路径参数），要求路径上设置对应的占位符，并且占位符名称与方法形参名称相同
    @RequestMapping(value = "/users/{id}" ,method = RequestMethod.GET)
    @ResponseBody
    public String getById(@PathVariable Integer id){
        System.out.println("user getById..."+id);
        return "{'module':'user getById'}";
    }

    //设置当前请求方法为GET，表示REST风格中的查询操作
    @RequestMapping(value = "/users",method = RequestMethod.GET)
    @ResponseBody
    public String getAll(){
        System.out.println("user getAll...");
        return "{'module':'user getAll'}";
    }

}

 

1.3 RESTful入门小结

 

2. RESTful快速开发

 

@RestController
@RequestMapping("/books")
public class BookController2 {

    @PostMapping
    public String save(@RequestBody Book book) {
        System.out.println("book save..." + book);
        return "{'module':'book save'}";
    }

    @DeleteMapping("/{id}")
    public String delete(@PathVariable Integer id) {
        System.out.println("book delete..." + id);
        return "{'module':'book delete'}";
    }

    @PutMapping
    public String update(@RequestBody Book book) {
        System.out.println("book update..." + book);
        return "{'module':'book update'}";
    }

    @GetMapping("/{id}")
    public String getById(@PathVariable Integer id) {
        System.out.println("book getById..." + id);
        return "{'module':'book getById'}";
    }

    @GetMapping
    public String getAll() {
        System.out.println("book getAll...");
        return "{'module':'book getAll'}";
    }
}

3. REST数据交互案例

3.1 后台接口

@RestController
@RequestMapping("/books")
public class BookController {

    @PostMapping
    public String save(@RequestBody Book book){
        System.out.println("book save ==> "+ book);
        return "{'module':'book save success'}";
    }

    @GetMapping
    public List<Book> getAll(){
        System.out.println("book getAll is running ...");
        List<Book> bookList = new ArrayList<Book>();

        Book book1 = new Book();
        book1.setType("计算机");
        book1.setName("SpringMVC入门教程");
        book1.setDescription("小试牛刀");
        bookList.add(book1);

        Book book2 = new Book();
        book2.setType("计算机");
        book2.setName("SpringMVC实战教程");
        book2.setDescription("一代宗师");
        bookList.add(book2);

        Book book3 = new Book();
        book3.setType("计算机丛书");
        book3.setName("SpringMVC实战教程进阶");
        book3.setDescription("一代宗师呕心创作");
        bookList.add(book3);

        return bookList;
    }

}

3.2 页面访问处理

静态资源放行

@Configuration
@ComponentScan({"com.controller","com.config"})
@EnableWebMvc
public class SpringMvcConfig {
}


public class ServletContainersInitConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
    protected Class<?>[] getRootConfigClasses() {
        return new Class[0];
    }

    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{SpringMvcConfig.class};
    }

    protected String[] getServletMappings() {
        return new String[]{"/"};
    }

    //乱码处理
    @Override
    protected Filter[] getServletFilters() {
        CharacterEncodingFilter filter = new CharacterEncodingFilter();
        filter.setEncoding("UTF-8");
        return new Filter[]{filter};
    }
}



@Configuration
public class SpringMvcSupport extends WebMvcConfigurationSupport {
    //设置静态资源访问过滤，当前类需要设置为配置类，并被扫描加载
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        //当访问/pages/????时候，从/pages目录下查找内容
        registry.addResourceHandler("/pages/**").addResourceLocations("/pages/");
        registry.addResourceHandler("/js/**").addResourceLocations("/js/");
        registry.addResourceHandler("/css/**").addResourceLocations("/css/");
        registry.addResourceHandler("/plugins/**").addResourceLocations("/plugins/");
    }
}

3.3 页面后台绑定

<script>
    var vue = new Vue({
        el: '#app',
        data: {
            dataList: [],//当前页要展示的分页列表数据
            formData: {},//表单数据
            dialogFormVisible: false,//增加表单是否可见
            dialogFormVisible4Edit: false,//编辑表单是否可见
            pagination: {},//分页模型数据，暂时弃用
        },

        //钩子函数，VUE对象初始化完成后自动执行
        created() {
            this.getAll();
        },

        methods: {

            //主页列表查询
            getAll() {
                var _this = this;
                axios({
                    method: "get",
                    url: "http://localhost:8080/SpringMVC_REST-case/books",
                }).then(function (resp) {
                    _this.dataList = resp.data;
                });
            },

            //添加
            saveBook() {
                var _this = this;
                axios({
                    method: "post",
                    url: "http://localhost:8080/SpringMVC_REST-case/books",
                    data: _this.formData
                }).then(function (resp) {

                });
            },
        }
    })
</script>
</html>