feat(scaffold): support register converter automatically

generators/app/templates/${artifactId}-provider/src/main/java/${basePath}/config/ApplicationConfiguration.tmpl.java

@@ -1,9 +1,22 @@
 package ${basePackage}.config;
 
+import ${basePackage}.util.ConverterUtils;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.convert.ConversionService;
 
 @Configuration
-public class ApplicationConfiguration {
+public class ApplicationConfiguration implements InitializingBean {
+    @Autowired
+    private ConversionService conversionService;
+
+    @Override
+    public void afterPropertiesSet() {
+        ConverterUtils.setConversionService(conversionService);
+    }
     <%
         if(['mybatis-plus']){
             print(`

generators/app/templates/${artifactId}-provider/src/main/java/${basePath}/config/web/ConverterConfigurer.tmpl.java

@@ -0,0 +1,26 @@
+package ${basePackage}.config.web;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.format.FormatterRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+import java.util.Map;
+
+@Configuration
+public class ConverterConfigurer implements WebMvcConfigurer {
+    @Autowired
+    private ApplicationContext context;
+
+    @Override
+    public void addFormatters(FormatterRegistry registry) {
+        Map<String, Converter> beans = context.getBeansOfType(Converter.class);
+        beans.forEach((k, v) -> {
+            if (v != null) {
+                registry.addConverter((Converter<?, ?>) v);
+            }
+        });
+    }
+}

generators/app/templates/${artifactId}-provider/src/main/java/${basePath}/controller/if_demo.DemoController.tmpl.java

@@ -7,6 +7,8 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import static ${basePackage}.util.ConverterUtils.convert;
+
 @RestController
 @RequestMapping("demo")
 @Payload
@@ -19,6 +21,11 @@ public String sayHello() {
         return "welcome!";
     }
 
+    @GetMapping("convert")
+    public Model convert() {
+        return convert("welcome!", Model.class);
+    }
+
     @GetMapping("sys-error")
     public void syserror() {
         throw new RuntimeException();
@@ -28,4 +35,9 @@ public void syserror() {
     public void bizerror() {
         throw new DemoException();
     }
+
+    @Data
+    public static class Model {
+        private String content;
+    }
 }

generators/app/templates/${artifactId}-provider/src/main/java/${basePath}/converter/if_demo.String2DemoControllerModelConverter.tmpl.java

@@ -0,0 +1,15 @@
+package ${basePackage}.converter;
+
+import ${basePackage}.controller.DemoController;
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.stereotype.Component;
+
+@Component
+public class String2DemoControllerModelConverter implements Converter<String, DemoController.Model> {
+    @Override
+    public DemoController.Model convert(String source) {
+        DemoController.Model target = new DemoController.Model();
+        target.setContent(source);
+        return target;
+    }
+}

generators/app/templates/${artifactId}-provider/src/main/java/${basePath}/util/ConverterUtils.tmpl.java

@@ -0,0 +1,30 @@
+package ${basePackage}.util;
+
+import org.springframework.core.convert.ConversionService;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public abstract class ConverterUtils {
+    private static ConversionService conversionService;
+
+    public static void setConversionService(ConversionService conversionService) {
+        ConverterUtils.conversionService = conversionService;
+    }
+
+    public static <FROM, TO> TO convert(FROM from, Class<TO> toClazz) {
+        return conversionService.convert(from, toClazz);
+    }
+
+    public static <FROM, TO> List<TO> convertAll(List<FROM> fromList, Class<TO> toCls) {
+        if (fromList == null || fromList.size() == 0) {
+            return new ArrayList<>();
+        }
+
+        return fromList
+                .stream()
+                .map(from -> conversionService.convert(from, toCls)).collect(Collectors.toList());
+    }
+}

generators/test/app/index.test.js

@@ -54,6 +54,8 @@ describe('generate app', () => {
         assert.file('foo-service-provider/src/main/java/com/deepexi/foo/controller/Payload.java')
         assert.file('foo-service-provider/src/main/java/com/deepexi/foo/config/web/ApplicationErrorAttributes.java')
         assert.file('foo-service-provider/src/main/java/com/deepexi/foo/exception/BizErrorResponseStatus.java')
+        assert.file('foo-service-provider/src/main/java/com/deepexi/foo/config/web/ConverterConfigurer.java')
+        assert.file('foo-service-provider/src/main/java/com/deepexi/foo/util/ConverterUtils.java')
         assert.file('foo-service-provider/pom.xml')
       })
 
@@ -121,6 +123,7 @@ describe('generate demo', () => {
     assert.file('foo-service-provider/src/main/java/com/deepexi/foo/service/DemoService.java')
     assert.file('foo-service-provider/src/main/java/com/deepexi/foo/service/impl/DemoServiceImpl.java')
     assert.file('foo-service-provider/src/main/java/com/deepexi/foo/exception/DemoException.java')
+    assert.file('foo-service-provider/src/main/java/com/deepexi/foo/converter/String2DemoControllerModelConverter.java')
   });
 });