Spring Boot 的 JSON RPC（服务器示例） - briandilley/jsonrpc4j Wiki

我就是我 2023-10-01 17:42 10阅读 0赞

##  ##

## Spring Boot 和 JSON-RPC for Java 快速入门 ##

### 服务器 ###

#### 配置 ####

要使整个系统正常工作，您需要在 @Configuration 类中定义 AutoJsonRpcServiceImplExporter bean：

package example.jsonrpc4j.springboot;
    
    import com.googlecode.jsonrpc4j.spring.AutoJsonRpcServiceImplExporter;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    @Configuration
    public class ApplicationConfig {
    
        @Bean
        public static AutoJsonRpcServiceImplExporter autoJsonRpcServiceImplExporter() {
            AutoJsonRpcServiceImplExporter exp = new AutoJsonRpcServiceImplExporter();
            //in here you can provide custom HTTP status code providers etc. eg:
            //exp.setHttpStatusCodeProvider();
            //exp.setErrorResolver();
            return exp;
        }
    }

#### 服务 ####

然后创建您的服务接口。我的示例是一个简单的计算器端点：

package example.jsonrpc4j.springboot.api;
    
    import com.googlecode.jsonrpc4j.JsonRpcParam;
    import com.googlecode.jsonrpc4j.JsonRpcService;
    
    @JsonRpcService("/calculator")
    public interface ExampleServerAPI {
        int multiplier(@JsonRpcParam(value = "a") int a, @JsonRpcParam(value = "b") int b);
    }

并像这样实现您的界面：

package example.jsonrpc4j.springboot.api;
    
    import com.googlecode.jsonrpc4j.spring.AutoJsonRpcServiceImpl;
    import org.springframework.stereotype.Service;
    
    @Service
    @AutoJsonRpcServiceImpl
    public class ExampleServerAPIImpl implements ExampleServerAPI {
        @Override
        public int multiplier(int a, int b) {
            return a * b;
        }
    }

### **Spring CORS——全局CORS配置** ###

**实现 WebMvcConfigurer**

要为整个应用程序启用 CORS，请使用`WebMvcConfigurer`添加`CorsRegistry`.

CorsConfiguration.java

package example.jsonrpc4j.springboot;
    
    import org.springframework.context.annotation.Configuration;
    import org.springframework.web.servlet.config.annotation.CorsRegistry;
    import org.springframework.web.servlet.config.annotation.EnableWebMvc;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
    
    @Configuration
    @EnableWebMvc
    public class CorsConfiguration implements WebMvcConfigurer {
    	@Override
    	public void addCorsMappings(CorsRegistry registry) {
    		registry.addMapping("/**").allowedMethods("GET", "POST");
    	}
    }

你完成了！向您的服务器发送请求时，请注意设置内容类型标头至关重要，例如：

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAYWxsd2F5Mg_size_20_color_FFFFFF_t_70_g_se_x_16][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAYWxsd2F5Mg_size_20_color_FFFFFF_t_70_g_se_x_16 1][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAYWxsd2F5Mg_size_20_color_FFFFFF_t_70_g_se_x_16 2][]

<html>
        <head>
            <title>TODO supply a title</title>
            <meta charset="UTF-8">
            <meta name="viewport" content="width=device-width, initial-scale=1.0">
        </head>
        <body>
            <script>
                var myHeaders = new Headers();
                myHeaders.append("Content-Type", "application/json");
    
                var raw = JSON.stringify({"id": "1", "jsonrpc": "2.0", "method": "multiplier", "params": {"a": 5, "b": 6}});
    
                var requestOptions = {
                    method: 'POST',
                    headers: myHeaders,
                    body: raw,
                    redirect: 'follow'
                };
    
                fetch("http://localhost:8080/calculator", requestOptions)
                        .then(response => response.text())
                        .then(result => console.log(result))
                        .catch(error => console.log('error', error));
            </script>
        </body>
    </html>

<html>
        <head>
            <title>TODO supply a title</title>
            <meta charset="UTF-8">
            <meta name="viewport" content="width=device-width, initial-scale=1.0">
        </head>
        <body>
            <script>
                fetch('http://localhost:8080/calculator', {
                    body: '{"id":"1","jsonrpc":"2.0","method":"multiplier","params":{"a":5,"b":6}}',
                    headers: {
                        Accept: "application/json",
                        "Content-Type": "application/json"
                    },
                    method: "POST"
                }).then(response => response.json())
                        .then(data => console.log(data));
            </script>
        </body>
    </html>

<html>
        <head>
            <title>TODO supply a title</title>
            <meta charset="UTF-8">
            <meta name="viewport" content="width=device-width, initial-scale=1.0">
        </head>
        <body>
            <script>
                fetch('http://localhost:8080/calculator', {
                    body: '{"id":"1","jsonrpc":"2.0","method":"multiplier","params":{"a":5,"b":6}}',
                    headers: {
                        Accept: "application/json",
                        "Content-Type": "application/json"
                    },
                    method: "POST"
                }).then(response => response.json())
                        .then(data => console.log(data.result));
            </script>
        </body>
    </html>

curl -H "Content-Type:application/json" -d '{"id":"1","jsonrpc":"2.0","method":"multiplier","params":{"a":5,"b":6}}' http://localhost:8080/calculator

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAYWxsd2F5Mg_size_20_color_FFFFFF_t_70_g_se_x_16 3][]

> 整个例子可以在[这里找到][Link 1]

[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAYWxsd2F5Mg_size_20_color_FFFFFF_t_70_g_se_x_16]: https://img-blog.csdnimg.cn/0fedee21fbee40de9353c0ef79a80256.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAYWxsd2F5Mg==,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAYWxsd2F5Mg_size_20_color_FFFFFF_t_70_g_se_x_16 1]: https://img-blog.csdnimg.cn/ec2244d0894d49a2b49dd7ad524188f2.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAYWxsd2F5Mg==,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAYWxsd2F5Mg_size_20_color_FFFFFF_t_70_g_se_x_16 2]: https://img-blog.csdnimg.cn/037da2e38e22460fb63d03a71a1f2b52.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAYWxsd2F5Mg==,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAYWxsd2F5Mg_size_20_color_FFFFFF_t_70_g_se_x_16 3]: https://img-blog.csdnimg.cn/b8c317e8da444584b4edc08e4e6c9fbd.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAYWxsd2F5Mg==,size_20,color_FFFFFF,t_70,g_se,x_16
[Link 1]: https://github.com/Shmarkus/jsonrpc4j-server-example