first commit.

.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+    "java.project.sourcePaths": ["src"],
+    "java.project.outputPath": "bin",
+    "java.project.referencedLibraries": [
+        "lib/**/*.jar"
+    ]
+}

README.md

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+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).

src/xyz/zhouxy/mappojo/generator/App.java

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+package xyz.zhouxy.mappojo.generator;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+public class App {
+
+    public static void main(String[] args) {
+        boolean chain = true;
+        String packageName = "xyz.zhouxy.plusone.system.domain.model.role";
+        String className = "Role";
+        FieldTypeMap fieldTypeMap = new FieldTypeMap()
+                .addField("id",              "Long")
+                .addField("name",            "String")
+                .addField("identifier",      "String")
+                .addField("status",          "Integer")
+                .addField("remarks",         "String")
+                .addField("create_time",     "LocalDateTime")
+                .addField("created_by",      "Long")
+                .addField("update_time",     "LocalDateTime")
+                .addField("updated_by",      "Long")
+                .addField("version",         "Long")
+                ;
+
+        Map<String, String> fields = fieldTypeMap.fields;
+        StringBuilder result = new StringBuilder(String.format("""
+                package %s;
+
+                import java.util.*;
+
+                public class %s {
+
+                    private final String[] fieldNames = { "%s" };
+                """, packageName, className, String.join("\", \"", fields.keySet())));
+
+        result.append(String.format("""
+
+                    private final Map<String, Object> fields;
+
+                    public %s() {
+                        this.fields = new HashMap<>();
+                    }
+
+                    public %s(final Map<String, Object> fields) {
+                        this.fields = fields;
+                    }
+                """, className, className));
+
+        for (var field_name : fields.keySet()) {
+            var words = field_name.split("_");
+            StringBuilder fieldName = new StringBuilder();
+            StringBuilder FieldName = new StringBuilder();
+
+            for (int i = 0; i < words.length; i++) {
+                var word = words[i];
+                var Word = word.substring(0, 1).toUpperCase() + word.substring(1);
+                fieldName.append((i == 0) ? word : Word);
+                FieldName.append(Word);
+            }
+
+            String fieldNameStr = fieldName.toString();
+            String FieldNameStr = FieldName.toString();
+
+            String fieldTypeName = fields.get(field_name);
+            result.append(String.format("""
+
+                        public %s get%s() {
+                            return (%s) this.fields.get("%s");
+                        }
+                    """, fieldTypeName, FieldNameStr, fieldTypeName, field_name));
+            if (chain) {
+                result.append(String.format("""
+                            public %s set%s(%s %s) {
+                                this.fields.put("%s", %s);
+                                return this;
+                            }
+                        """, className, FieldNameStr, fieldTypeName, fieldNameStr, field_name, fieldNameStr));
+            } else {
+                result.append(String.format("""
+                            public void set%s(%s %s) {
+                                this.fields.put("%s", %s);
+                            }
+                        """, FieldNameStr, fieldTypeName, fieldNameStr, field_name, fieldNameStr));
+            }
+        }
+
+        result.append("""
+
+                    @Override
+                    public String toString() {
+                        return this.fields.toString();
+                    }
+                """);
+        result.append("}\n");
+        String resultStr = result.toString();
+        System.out.println(resultStr);
+    }
+}
+
+class FieldTypeMap {
+    final Map<String, String> fields = new LinkedHashMap<>();
+
+    FieldTypeMap addField(String field_name, String type) {
+        this.fields.put(field_name, type);
+        return this;
+    }
+
+    FieldTypeMap addField(String field_name, Class<?> type) {
+        this.fields.put(field_name, type.getSimpleName());
+        return this;
+    }
+}

src/xyz/zhouxy/plusone/system/domain/model/role/Role.java

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+package xyz.zhouxy.plusone.system.domain.model.role;
+
+import java.time.LocalDateTime;
+import java.util.HashMap;
+import java.util.Map;
+
+public class Role {
+
+    private final String[] fieldNames = { "id", "name", "identifier", "status", "remarks",
+            "create_time", "created_by", "update_time", "updated_by", "version" };
+
+    private final Map<String, Object> fields;
+
+    public Role() {
+        this.fields = new HashMap<>();
+    }
+
+    public Role(final Map<String, Object> fields) {
+        this.fields = fields;
+    }
+
+    public Long getId() {
+        return (Long) this.fields.get("id");
+    }
+
+    public Role setId(Long id) {
+        this.fields.put("id", id);
+        return this;
+    }
+
+    public String getName() {
+        return (String) this.fields.get("name");
+    }
+
+    public Role setName(String name) {
+        this.fields.put("name", name);
+        return this;
+    }
+
+    public String getIdentifier() {
+        return (String) this.fields.get("identifier");
+    }
+
+    public Role setIdentifier(String identifier) {
+        this.fields.put("identifier", identifier);
+        return this;
+    }
+
+    public Integer getStatus() {
+        return (Integer) this.fields.get("status");
+    }
+
+    public Role setStatus(Integer status) {
+        this.fields.put("status", status);
+        return this;
+    }
+
+    public String getRemarks() {
+        return (String) this.fields.get("remarks");
+    }
+
+    public Role setRemarks(String remarks) {
+        this.fields.put("remarks", remarks);
+        return this;
+    }
+
+    public LocalDateTime getCreateTime() {
+        return (LocalDateTime) this.fields.get("create_time");
+    }
+
+    public Role setCreateTime(LocalDateTime createTime) {
+        this.fields.put("create_time", createTime);
+        return this;
+    }
+
+    public Long getCreatedBy() {
+        return (Long) this.fields.get("created_by");
+    }
+
+    public Role setCreatedBy(Long createdBy) {
+        this.fields.put("created_by", createdBy);
+        return this;
+    }
+
+    public LocalDateTime getUpdateTime() {
+        return (LocalDateTime) this.fields.get("update_time");
+    }
+
+    public Role setUpdateTime(LocalDateTime updateTime) {
+        this.fields.put("update_time", updateTime);
+        return this;
+    }
+
+    public Long getUpdatedBy() {
+        return (Long) this.fields.get("updated_by");
+    }
+
+    public Role setUpdatedBy(Long updatedBy) {
+        this.fields.put("updated_by", updatedBy);
+        return this;
+    }
+
+    public Long getVersion() {
+        return (Long) this.fields.get("version");
+    }
+
+    public Role setVersion(Long version) {
+        this.fields.put("version", version);
+        return this;
+    }
+
+    @Override
+    public String toString() {
+        return this.fields.toString();
+    }
+
+    public static void main(String[] args) {
+        Role role = new Role()
+                .setId(2333L)
+                .setIdentifier("role")
+                .setName("角色")
+                .setStatus(0)
+                .setCreateTime(LocalDateTime.of(2000, 1, 29, 5, 20, 8))
+                .setCreatedBy(666L)
+                .setUpdatedBy(999L)
+                .setUpdateTime(LocalDateTime.now());
+        System.out.println(role);
+    }
+}