添加json解析

ruoyi-admin/src/main/java/com/ruoyi/web/controller/monitor/ToolsController.java

@@ -0,0 +1,37 @@
+package com.ruoyi.web.controller.monitor;
+
+import com.alibaba.fastjson.JSONArray;
+import com.ruoyi.common.core.controller.BaseController;
+import com.ruoyi.common.core.domain.AjaxResult;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.constraints.NotBlank;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 工具
+ * 
+ * @author ruoyi
+ */
+@RestController
+public class ToolsController extends BaseController
+{
+    private String prefix = "tool";
+
+
+    @GetMapping("/tool/getJsonString")
+    public AjaxResult getJsonString(@RequestParam @NotBlank String jsonString,String filed) {
+        JSONArray jsonArray = JSONArray.parseArray(jsonString);
+        List<String> response = new ArrayList<>();
+        for (int i = 0; i < jsonArray.size(); i++) {
+            com.alibaba.fastjson.JSONObject item = jsonArray.getJSONObject(0);
+            String itemStr = item.getString(filed);
+            response.add(itemStr);
+        }
+        String join = String.join(",", response);
+        return AjaxResult.success("",join);
+    }
+
+
+}