refactor(converter): 重构StringConverter实现并统一处理null值

重构各实体类的StringConverter实现，移除EntityStringConverter基类，改为直接实现StringConverter接口
在各Service中提供对应的StringConverter实例，统一处理null值情况
更新ComboBoxUtils使用Service提供的StringConverter

client/src/main/java/com/ecep/contract/converter/ProductTypeStringConverter.java

@@ -1,29 +1,25 @@
 package com.ecep.contract.converter;
 
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.annotation.Lazy;
-import org.springframework.stereotype.Component;
-
 import com.ecep.contract.service.ProductTypeService;
 import com.ecep.contract.vo.ProductTypeVo;
 
-import jakarta.annotation.PostConstruct;
+import javafx.util.StringConverter;
 
-@Lazy
-@Component
-public class ProductTypeStringConverter extends EntityStringConverter<ProductTypeVo> {
-    @Lazy
-    @Autowired
-    private ProductTypeService service;
-
-    public ProductTypeStringConverter() {
+public class ProductTypeStringConverter extends StringConverter<ProductTypeVo> {
+    private final ProductTypeService service;
 
+    public ProductTypeStringConverter(ProductTypeService service) {
+        this.service = service;
     }
 
-    @PostConstruct
-    private void init() {
-        setInitialized(type -> service.findById(type.getId()));
-        setSuggestion(service::search);
+    @Override
+    public String toString(ProductTypeVo type) {
+        return type == null ? "" : type.getCode() + " " + type.getName();
+    }
+
+    @Override
+    public ProductTypeVo fromString(String string) {
+        return service.findByName(string);
     }
 
 

client/src/main/java/com/ecep/contract/converter/ProductUsageStringConverter.java

@@ -1,5 +1,6 @@
 package com.ecep.contract.converter;
 
+import javafx.util.StringConverter;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Component;
@@ -9,21 +10,21 @@ import com.ecep.contract.vo.ProductUsageVo;
 
 import jakarta.annotation.PostConstruct;
 
-@Lazy
-@Component
-public class ProductUsageStringConverter extends EntityStringConverter<ProductUsageVo> {
-    @Lazy
-    @Autowired
+public class ProductUsageStringConverter extends StringConverter<ProductUsageVo> {
     private ProductUsageService service;
 
-    public ProductUsageStringConverter() {
-
+    public ProductUsageStringConverter(ProductUsageService service) {
+        this.service = service;
     }
 
-    @PostConstruct
-    private void init() {
-        setInitialized(usage -> service.findById(usage.getId()));
-        setSuggestion(service::search);
+    @Override
+    public String toString(ProductUsageVo usage) {
+        return usage == null ? "" : usage.getCode() + " " + usage.getName();
+    }
+
+    @Override
+    public ProductUsageVo fromString(String string) {
+        return service.findByName(string);
     }
 
 

client/src/main/java/com/ecep/contract/converter/ProjectIndustryStringConverter.java

@@ -1,30 +1,31 @@
 package com.ecep.contract.converter;
 
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.annotation.Lazy;
-import org.springframework.stereotype.Component;
-
 import com.ecep.contract.service.ProjectIndustryService;
 import com.ecep.contract.vo.ProjectIndustryVo;
 
-import jakarta.annotation.PostConstruct;
+import javafx.util.StringConverter;
 
-@Lazy
-@Component
-public class ProjectIndustryStringConverter extends EntityStringConverter<ProjectIndustryVo> {
-    @Lazy
-    @Autowired
+public class ProjectIndustryStringConverter extends StringConverter<ProjectIndustryVo> {
     private ProjectIndustryService service;
 
-    public ProjectIndustryStringConverter() {
-
+    public ProjectIndustryStringConverter(ProjectIndustryService service) {
+        this.service = service;
     }
 
-    @PostConstruct
-    private void init() {
-        setInitialized(industry -> service.findById(industry.getId()));
-        setSuggestion(service::search);
+    @Override
+    public String toString(ProjectIndustryVo object) {
+        if (object == null) {
+            return "";
+        }
+        return object.getCode() + " " + object.getName();
     }
 
+    @Override
+    public ProjectIndustryVo fromString(String string) {
+        if (string == null || string.isEmpty()) {
+            return null;
+        }
+        return service.findByName(string);
+    }
 
 }

client/src/main/java/com/ecep/contract/converter/ProjectSaleTypeStringConverter.java

@@ -0,0 +1,24 @@
+package com.ecep.contract.converter;
+
+import com.ecep.contract.service.ProjectSaleTypeService;
+import com.ecep.contract.vo.ProjectSaleTypeVo;
+
+import javafx.util.StringConverter;
+
+public class ProjectSaleTypeStringConverter extends StringConverter<ProjectSaleTypeVo> {
+    private final ProjectSaleTypeService service;
+
+    public ProjectSaleTypeStringConverter(ProjectSaleTypeService service) {
+        this.service = service;
+    }
+
+    @Override
+    public String toString(ProjectSaleTypeVo type) {
+        return type == null ? "" : type.getCode() + " " + type.getName();
+    }
+
+    @Override
+    public ProjectSaleTypeVo fromString(String string) {
+        return service.findByName(string);
+    }
+}

client/src/main/java/com/ecep/contract/converter/ProjectTypeStringConverter.java

@@ -0,0 +1,46 @@
+package com.ecep.contract.converter;
+
+import com.ecep.contract.service.ProjectTypeService;
+import com.ecep.contract.vo.ProjectTypeVo;
+import javafx.util.StringConverter;
+
+/**
+ * ProjectTypeVo的StringConverter实现，用于JavaFX控件中的显示和转换
+ */
+public class ProjectTypeStringConverter extends StringConverter<ProjectTypeVo> {
+    private final ProjectTypeService service;
+
+    /**
+     * 构造函数
+     * 
+     * @param service ProjectTypeService实例
+     */
+    public ProjectTypeStringConverter(ProjectTypeService service) {
+        this.service = service;
+    }
+
+    /**
+     * 将ProjectTypeVo对象转换为字符串
+     * 
+     * @param object ProjectTypeVo对象
+     * @return 转换后的字符串
+     */
+    @Override
+    public String toString(ProjectTypeVo object) {
+        return object == null ? "" : object.getName();
+    }
+
+    /**
+     * 将字符串转换为ProjectTypeVo对象
+     * 
+     * @param string 字符串
+     * @return 转换后的ProjectTypeVo对象
+     */
+    @Override
+    public ProjectTypeVo fromString(String string) {
+        if (string == null || string.isEmpty()) {
+            return null;
+        }
+        return service.findByName(string);
+    }
+}