解决各种 json 库的兼容性问题

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

@@ -1,25 +0,0 @@
-package com.ruoyi.web.controller.monitor;
-
-import org.springframework.security.access.prepost.PreAuthorize;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-import com.ruoyi.common.core.domain.AjaxResult;
-import com.ruoyi.framework.web.domain.Server;
-
-/**
- * 服务器监控
- *
- * @author ruoyi
- */
-@RestController
-@RequestMapping("/monitor/server")
-public class ServerController {
-    @PreAuthorize("@ss.hasPermi('monitor:server:list')")
-    @GetMapping()
-    public AjaxResult getInfo() throws Exception {
-        Server server = new Server();
-        server.copyTo();
-        return AjaxResult.success(server);
-    }
-}

ruoyi-framework/src/main/java/com/ruoyi/framework/web/domain/Server.java

@@ -1,175 +0,0 @@
-package com.ruoyi.framework.web.domain;
-
-import java.net.UnknownHostException;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Properties;
-
-import com.ruoyi.common.utils.Arith;
-import com.ruoyi.common.utils.ip.IpUtils;
-import com.ruoyi.framework.web.domain.server.Cpu;
-import com.ruoyi.framework.web.domain.server.Jvm;
-import com.ruoyi.framework.web.domain.server.Mem;
-import com.ruoyi.framework.web.domain.server.Sys;
-import com.ruoyi.framework.web.domain.server.SysFile;
-import oshi.SystemInfo;
-import oshi.hardware.CentralProcessor;
-import oshi.hardware.CentralProcessor.TickType;
-import oshi.hardware.GlobalMemory;
-import oshi.hardware.HardwareAbstractionLayer;
-import oshi.software.os.FileSystem;
-import oshi.software.os.OSFileStore;
-import oshi.software.os.OperatingSystem;
-import oshi.util.Util;
-
-/**
- * 服务器相关信息
- *
- * @author ruoyi
- */
-public class Server {
-    private static final int OSHI_WAIT_SECOND = 1000;
-
-    /**
-     * CPU相关信息
-     */
-    private Cpu cpu = new Cpu();
-
-    /**
-     * 內存相关信息
-     */
-    private Mem mem = new Mem();
-
-    /**
-     * JVM相关信息
-     */
-    private Jvm jvm = new Jvm();
-
-    /**
-     * 服务器相关信息
-     */
-    private Sys sys = new Sys();
-
-    /**
-     * 磁盘相关信息
-     */
-    private List<SysFile> sysFiles = new LinkedList<SysFile>();
-
-    public void copyTo() throws Exception {
-        SystemInfo si = new SystemInfo();
-        HardwareAbstractionLayer hal = si.getHardware();
-
-        setCpuInfo(hal.getProcessor());
-
-        setMemInfo(hal.getMemory());
-
-        setSysInfo();
-
-        setJvmInfo();
-
-        setSysFiles(si.getOperatingSystem());
-    }
-
-    /**
-     * 设置CPU信息
-     */
-    private void setCpuInfo(CentralProcessor processor) {
-        // CPU信息
-        long[] prevTicks = processor.getSystemCpuLoadTicks();
-        Util.sleep(OSHI_WAIT_SECOND);
-        long[] ticks = processor.getSystemCpuLoadTicks();
-        long nice = ticks[TickType.NICE.getIndex()] - prevTicks[TickType.NICE.getIndex()];
-        long irq = ticks[TickType.IRQ.getIndex()] - prevTicks[TickType.IRQ.getIndex()];
-        long softirq = ticks[TickType.SOFTIRQ.getIndex()] - prevTicks[TickType.SOFTIRQ.getIndex()];
-        long steal = ticks[TickType.STEAL.getIndex()] - prevTicks[TickType.STEAL.getIndex()];
-        long cSys = ticks[TickType.SYSTEM.getIndex()] - prevTicks[TickType.SYSTEM.getIndex()];
-        long user = ticks[TickType.USER.getIndex()] - prevTicks[TickType.USER.getIndex()];
-        long iowait = ticks[TickType.IOWAIT.getIndex()] - prevTicks[TickType.IOWAIT.getIndex()];
-        long idle = ticks[TickType.IDLE.getIndex()] - prevTicks[TickType.IDLE.getIndex()];
-        long totalCpu = user + nice + cSys + idle + iowait + irq + softirq + steal;
-        cpu.setCpuNum(processor.getLogicalProcessorCount());
-        cpu.setTotal(totalCpu);
-        cpu.setSys(cSys);
-        cpu.setUsed(user);
-        cpu.setWait(iowait);
-        cpu.setFree(idle);
-    }
-
-    /**
-     * 设置内存信息
-     */
-    private void setMemInfo(GlobalMemory memory) {
-        mem.setTotal(memory.getTotal());
-        mem.setUsed(memory.getTotal() - memory.getAvailable());
-        mem.setFree(memory.getAvailable());
-    }
-
-    /**
-     * 设置服务器信息
-     */
-    private void setSysInfo() {
-        Properties props = System.getProperties();
-        sys.setComputerName(IpUtils.getHostName());
-        sys.setComputerIp(IpUtils.getHostIp());
-        sys.setOsName(props.getProperty("os.name"));
-        sys.setOsArch(props.getProperty("os.arch"));
-        sys.setUserDir(props.getProperty("user.dir"));
-    }
-
-    /**
-     * 设置Java虚拟机
-     */
-    private void setJvmInfo() throws UnknownHostException {
-        Properties props = System.getProperties();
-        jvm.setTotal(Runtime.getRuntime().totalMemory());
-        jvm.setMax(Runtime.getRuntime().maxMemory());
-        jvm.setFree(Runtime.getRuntime().freeMemory());
-        jvm.setVersion(props.getProperty("java.version"));
-        jvm.setHome(props.getProperty("java.home"));
-    }
-
-    /**
-     * 设置磁盘信息
-     */
-    private void setSysFiles(OperatingSystem os) {
-        FileSystem fileSystem = os.getFileSystem();
-        List<OSFileStore> fsArray = fileSystem.getFileStores();
-        for (OSFileStore fs : fsArray) {
-            long free = fs.getUsableSpace();
-            long total = fs.getTotalSpace();
-            long used = total - free;
-            SysFile sysFile = new SysFile();
-            sysFile.setDirName(fs.getMount());
-            sysFile.setSysTypeName(fs.getType());
-            sysFile.setTypeName(fs.getName());
-            sysFile.setTotal(convertFileSize(total));
-            sysFile.setFree(convertFileSize(free));
-            sysFile.setUsed(convertFileSize(used));
-            sysFile.setUsage(Arith.mul(Arith.div(used, total, 4), 100));
-            sysFiles.add(sysFile);
-        }
-    }
-
-    /**
-     * 字节转换
-     *
-     * @param size 字节大小
-     * @return 转换后值
-     */
-    public String convertFileSize(long size) {
-        long kb = 1024;
-        long mb = kb * 1024;
-        long gb = mb * 1024;
-        if (size >= gb) {
-            return String.format("%.1f GB", (float) size / gb);
-        } else if (size >= mb) {
-            float f = (float) size / mb;
-            return String.format(f > 100 ? "%.0f MB" : "%.1f MB", f);
-        } else if (size >= kb) {
-            float f = (float) size / kb;
-            return String.format(f > 100 ? "%.0f KB" : "%.1f KB", f);
-        } else {
-            return String.format("%d B", size);
-        }
-    }
-}

ruoyi-framework/src/main/java/com/ruoyi/framework/web/domain/server/Cpu.java

@@ -1,61 +0,0 @@
-package com.ruoyi.framework.web.domain.server;
-
-import com.ruoyi.common.utils.Arith;
-
-/**
- * CPU相关信息
- *
- * @author ruoyi
- */
-public class Cpu {
-    /**
-     * 核心数
-     */
-    private int cpuNum;
-
-    /**
-     * CPU总的使用率
-     */
-    private double total;
-
-    /**
-     * CPU系统使用率
-     */
-    private double sys;
-
-    /**
-     * CPU用户使用率
-     */
-    private double used;
-
-    /**
-     * CPU当前等待率
-     */
-    private double wait;
-
-    /**
-     * CPU当前空闲率
-     */
-    private double free;
-
-    public double getTotal() {
-        return Arith.round(Arith.mul(total, 100), 2);
-    }
-
-    public double getSys() {
-        return Arith.round(Arith.mul(sys / total, 100), 2);
-    }
-
-    public double getUsed() {
-        return Arith.round(Arith.mul(used / total, 100), 2);
-    }
-
-    public double getWait() {
-        return Arith.round(Arith.mul(wait / total, 100), 2);
-    }
-
-    public double getFree() {
-        return Arith.round(Arith.mul(free / total, 100), 2);
-    }
-
-}

ruoyi-framework/src/main/java/com/ruoyi/framework/web/domain/server/Jvm.java

@@ -1,83 +0,0 @@
-package com.ruoyi.framework.web.domain.server;
-
-import java.lang.management.ManagementFactory;
-
-import com.ruoyi.common.utils.Arith;
-import com.ruoyi.common.utils.DateUtils;
-
-/**
- * JVM相关信息
- *
- * @author ruoyi
- */
-public class Jvm {
-    /**
-     * 当前JVM占用的内存总数(M)
-     */
-    private double total;
-
-    /**
-     * JVM最大可用内存总数(M)
-     */
-    private double max;
-
-    /**
-     * JVM空闲内存(M)
-     */
-    private double free;
-
-    /**
-     * JDK版本
-     */
-    private String version;
-
-    /**
-     * JDK路径
-     */
-    private String home;
-
-    public double getTotal() {
-        return Arith.div(total, (1024 * 1024), 2);
-    }
-
-    public double getMax() {
-        return Arith.div(max, (1024 * 1024), 2);
-    }
-
-    public double getFree() {
-        return Arith.div(free, (1024 * 1024), 2);
-    }
-
-    public void setFree(double free) {
-        this.free = free;
-    }
-
-    public double getUsed() {
-        return Arith.div(total - free, (1024 * 1024), 2);
-    }
-
-    public double getUsage() {
-        return Arith.mul(Arith.div(total - free, total, 4), 100);
-    }
-
-    /**
-     * 获取JDK名称
-     */
-    public String getName() {
-        return ManagementFactory.getRuntimeMXBean().getVmName();
-    }
-
-    /**
-     * JDK启动时间
-     */
-    public String getStartTime() {
-        return DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD_HH_MM_SS, DateUtils.getServerStartDate());
-    }
-
-    /**
-     * JDK运行时间
-     */
-    public String getRunTime() {
-        return DateUtils.getDatePoor(DateUtils.getNowDate(), DateUtils.getServerStartDate());
-    }
-}

ruoyi-framework/src/main/java/com/ruoyi/framework/web/domain/server/Mem.java

@@ -1,42 +0,0 @@
-package com.ruoyi.framework.web.domain.server;
-
-import com.ruoyi.common.utils.Arith;
-
-/**
- * 內存相关信息
- *
- * @author ruoyi
- */
-public class Mem {
-    /**
-     * 内存总量
-     */
-    private double total;
-
-    /**
-     * 已用内存
-     */
-    private double used;
-
-    /**
-     * 剩余内存
-     */
-    private double free;
-
-    public double getTotal() {
-        return Arith.div(total, (1024 * 1024 * 1024), 2);
-    }
-
-    public double getUsed() {
-        return Arith.div(used, (1024 * 1024 * 1024), 2);
-    }
-
-    public double getFree() {
-        return Arith.div(free, (1024 * 1024 * 1024), 2);
-    }
-
-    public double getUsage() {
-        return Arith.mul(Arith.div(used, total, 4), 100);
-    }
-
-}

ruoyi-framework/src/main/java/com/ruoyi/framework/web/domain/server/Sys.java

@@ -1,34 +0,0 @@
-package com.ruoyi.framework.web.domain.server;
-
-/**
- * 系统相关信息
- *
- * @author ruoyi
- */
-public class Sys {
-    /**
-     * 服务器名称
-     */
-    private String computerName;
-
-    /**
-     * 服务器Ip
-     */
-    private String computerIp;
-
-    /**
-     * 项目路径
-     */
-    private String userDir;
-
-    /**
-     * 操作系统
-     */
-    private String osName;
-
-    /**
-     * 系统架构
-     */
-    private String osArch;
-
-}

ruoyi-framework/src/main/java/com/ruoyi/framework/web/domain/server/SysFile.java

@@ -1,44 +0,0 @@
-package com.ruoyi.framework.web.domain.server;
-
-/**
- * 系统文件相关信息
- *
- * @author ruoyi
- */
-public class SysFile {
-    /**
-     * 盘符路径
-     */
-    private String dirName;
-
-    /**
-     * 盘符类型
-     */
-    private String sysTypeName;
-
-    /**
-     * 文件类型
-     */
-    private String typeName;
-
-    /**
-     * 总大小
-     */
-    private String total;
-
-    /**
-     * 剩余大小
-     */
-    private String free;
-
-    /**
-     * 已经使用量
-     */
-    private String used;
-
-    /**
-     * 资源的使用率
-     */
-    private double usage;
-
-}

src/main/java/cn/iocoder/dashboard/common/pojo/CommonResult.java

@@ -5,6 +5,7 @@ import cn.iocoder.dashboard.common.exception.GlobalException;
 import cn.iocoder.dashboard.common.exception.ServiceException;
 import cn.iocoder.dashboard.common.exception.enums.GlobalErrorCodeConstants;
 import com.alibaba.fastjson.annotation.JSONField;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.Data;
 import org.springframework.util.Assert;
 
@@ -68,12 +69,14 @@ public final class CommonResult<T> implements Serializable {
         return result;
     }
 
-    @JSONField(serialize = false) // 避免序列化
+    @JSONField(serialize = false) // 避免 fastjson 序列化
+    @JsonIgnore // 避免 jackson 序列化
     public boolean isSuccess() {
         return GlobalErrorCodeConstants.SUCCESS.getCode().equals(code);
     }
 
-    @JSONField(serialize = false) // 避免序列化
+    @JSONField(serialize = false) // 避免 fastjson 序列化
+    @JsonIgnore // 避免 jackson 序列化
     public boolean isError() {
         return !isSuccess();
     }

src/main/java/cn/iocoder/dashboard/framework/web/config/WebConfiguration.java

@@ -1,9 +1,15 @@
 package cn.iocoder.dashboard.framework.web.config;
 
+import cn.iocoder.dashboard.util.servlet.ServletUtils;
+import com.alibaba.fastjson.serializer.SerializerFeature;
+import com.alibaba.fastjson.support.config.FastJsonConfig;
+import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.annotation.Order;
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.cors.CorsConfiguration;
 import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
@@ -12,6 +18,10 @@ import org.springframework.web.servlet.config.annotation.PathMatchConfigurer;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 import javax.annotation.Resource;
+import javax.servlet.http.HttpServletRequest;
+import java.nio.charset.Charset;
+import java.util.Collections;
+import java.util.List;
 
 /**
  * Web 配置类
@@ -27,26 +37,48 @@ public class WebConfiguration implements WebMvcConfigurer {
     public void configurePathMatch(PathMatchConfigurer configurer) {
         configurer.addPathPrefix(webProperties.getApiPrefix(), clazz ->
                 clazz.isAnnotationPresent(RestController.class)
-                && clazz.getPackage().getName().contains("cn.iocoder.dashboard"));
+                && clazz.getPackage().getName().startsWith(webProperties.getControllerPackage()));
     }
 
     // ========== MessageConverter 相关 ==========
 
-//    @Override
-//    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
-//        // 创建 FastJsonHttpMessageConverter 对象
-//        FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();
-//        // 自定义 FastJson 配置
-//        FastJsonConfig fastJsonConfig = new FastJsonConfig();
-//        fastJsonConfig.setCharset(Charset.defaultCharset()); // 设置字符集
-//        fastJsonConfig.setSerializerFeatures(SerializerFeature.DisableCircularReferenceDetect, // 剔除循环引用
-//                SerializerFeature.WriteNonStringKeyAsString); // 解决 Integer 作为 Key 时，转换为 String 类型，避免浏览器报错
-//        fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);
-//        // 设置支持的 MediaType
-//        fastJsonHttpMessageConverter.setSupportedMediaTypes(Collections.singletonList(MediaType.APPLICATION_JSON));
-//        // 添加到 converters 中
-//        converters.add(0, fastJsonHttpMessageConverter); // 注意，添加到最开头，放在 MappingJackson2XmlHttpMessageConverter 前面
-//    }
+    @Override
+    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
+        // 创建 FastJsonHttpMessageConverter 对象
+        // 重写 canRead 和 canWrite 方法，判断只处理自己写的 API 为前缀的 URL。原因是，FastJSON 和一些三方框架集成存在问题，例如说：
+        //      1. 与 Spring Boot Admin 时，由于 Registration 基于 Builder 构造对象，导致它无法反序列化
+        //      2. 与 Spring Boot Actuator 时，貌似也存在问题，具体还没去排查。
+        // 但是，为什么不替换回 Jackson 呢？
+        // 原因是，一些 Number 数值比较小时，反序列化回来是 Integer 类型，实际是 Long 类型。此时，在序列化时，会报 Integer 无法转换成 Long 的异常
+        FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter() {
+
+            @Override
+            protected boolean canRead(MediaType mediaType) {
+                return isApiPrefix() && super.canRead(mediaType);
+            }
+
+            @Override
+            protected boolean canWrite(MediaType mediaType) {
+                return isApiPrefix() && super.canWrite(mediaType);
+            }
+
+            private boolean isApiPrefix() {
+                HttpServletRequest request = ServletUtils.getRequest();
+                return request != null && request.getRequestURI().startsWith(webProperties.getApiPrefix());
+            }
+
+        };
+        // 自定义 FastJson 配置
+        FastJsonConfig fastJsonConfig = new FastJsonConfig();
+        fastJsonConfig.setCharset(Charset.defaultCharset()); // 设置字符集
+        fastJsonConfig.setSerializerFeatures(SerializerFeature.DisableCircularReferenceDetect, // 剔除循环引用
+                SerializerFeature.WriteNonStringKeyAsString); // 解决 Integer 作为 Key 时，转换为 String 类型，避免浏览器报错
+        fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);
+        // 设置支持的 MediaType
+        fastJsonHttpMessageConverter.setSupportedMediaTypes(Collections.singletonList(MediaType.APPLICATION_JSON));
+        // 添加到 converters 中
+        converters.add(0, fastJsonHttpMessageConverter); // 注意，添加到最开头，放在 MappingJackson2XmlHttpMessageConverter 前面
+    }
 
     // ========== Filter 相关 ==========
 

src/main/java/cn/iocoder/dashboard/framework/web/config/WebProperties.java

@@ -24,4 +24,14 @@ public class WebProperties {
     @NotNull(message = "API 前缀不能为空")
     private String apiPrefix;
 
+    /**
+     * Controller 所在包
+     *
+     * 主要目的是，给该 Controller 设置指定的 {@link #apiPrefix}
+     *
+     * 因为我们有多个 modules 包里会包含 Controller，所以只需要写到 cn.iocoder.dashboard 这样的层级
+     */
+    @NotNull(message = "Controller 所在包不能为空")
+    private String controllerPackage;
+
 }

src/main/java/cn/iocoder/dashboard/modules/system/controller/user/vo/user/SysUserPageItemRespVO.java

@@ -1,5 +1,6 @@
 package cn.iocoder.dashboard.modules.system.controller.user.vo.user;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.AllArgsConstructor;
@@ -17,6 +18,7 @@ public class SysUserPageItemRespVO extends SysUserRespVO {
     /**
      * 所在部门
      */
+    @JsonIgnore
     private Dept dept;
 
     @ApiModel("部门")

src/main/resources/application.yaml

@@ -36,6 +36,7 @@ spring:
 yudao:
   web:
     api-prefix: /api
+    controller-package: cn.iocoder.dashboard
   security:
     token-header: Authorization
     token-secret: abcdefghijklmnopqrstuvwxyz