init

pom.xml

@@ -96,6 +96,10 @@
                     <artifactId>javax.servlet.jsp</artifactId>
                     <groupId>org.glassfish.web</groupId>
                 </exclusion>
+                <exclusion>
+                    <artifactId>junit</artifactId>
+                    <groupId>junit</groupId>
+                </exclusion>
             </exclusions>
 
 
@@ -141,5 +145,12 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+
+        <dependency>
+            <groupId>com.github.jsqlparser</groupId>
+            <artifactId>jsqlparser</artifactId>
+            <version>5.3</version>
+        </dependency>
+
     </dependencies>
 </project>
\ No newline at end of file

src/main/java/com/ediagnosis/cdr/util/JsonProcessor.java → src/main/java/com/ediagnosis/cdr/context/JsonProcessor.java

-package com.ediagnosis.cdr.util;
+package com.ediagnosis.cdr.context;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.stereotype.Component;
 
 import java.util.Optional;
 

src/main/java/com/ediagnosis/cdr/util/TimeUtil.java → src/main/java/com/ediagnosis/cdr/context/TimeUtil.java

-package com.ediagnosis.cdr.util;
+package com.ediagnosis.cdr.context;
 
 
 import org.slf4j.Logger;

src/main/java/com/ediagnosis/cdr/dao/DimDataSummaryRepository.java

@@ -3,7 +3,7 @@ package com.ediagnosis.cdr.dao;
 import com.ediagnosis.cdr.dao.entity.DimDataSummaryEntity;
 import com.ediagnosis.cdr.dao.mapper.DimDataSummaryMapper;
 import com.ediagnosis.cdr.domain.DimDataSummary;
-import com.ediagnosis.cdr.util.TimeUtil;
+import com.ediagnosis.cdr.context.TimeUtil;
 import org.springframework.stereotype.Repository;
 
 import java.time.LocalDateTime;

src/main/java/com/ediagnosis/cdr/dao/DwsRepository.java

+package com.ediagnosis.cdr.dao;
+
+
+import com.ediagnosis.cdr.value.Page;
+import com.mybatisflex.core.row.Row;
+import org.springframework.stereotype.Repository;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Repository
+public class DwsRepository {
+
+
+    private final HiveQueryExecutor hiveQueryExecutor;
+
+    public DwsRepository(HiveQueryExecutor hiveQueryExecutor) {
+        this.hiveQueryExecutor = hiveQueryExecutor;
+    }
+
+    public Page<Map<String, String>> queryPage(String sql, int pageNo,int pageSize) {
+        com.mybatisflex.core.paginate.Page<Row> rowPage = hiveQueryExecutor.selectByFullSql(sql, pageNo, pageSize);
+        List<Map<String, String>> result = rowPage.getRecords().stream()
+                .map(row -> {
+                    Map<String, Object> camelKeysMap = row.toCamelKeysMap();
+                    Map<String, String> flatMap = new HashMap<>();
+
+                    camelKeysMap.forEach((table, value) -> {
+                        if (value instanceof Map<?, ?> m) {
+                            m.forEach((key, val) -> {
+                                if (key instanceof String field && val instanceof String fieldValue) {
+                                    flatMap.put(table + "." + field, fieldValue);
+                                }
+                            });
+                        }
+                    });
+
+                    return flatMap;
+                })
+                .filter(map -> !map.isEmpty()) // 可选：过滤掉空 map
+                .toList();
+
+        return new Page<>(pageNo, pageSize, rowPage.getTotalRow(), result);
+    }
+
+
+
+}

src/main/java/com/ediagnosis/cdr/dao/HiveQueryExecutor.java

+package com.ediagnosis.cdr.dao;
+
+
+import com.ediagnosis.cdr.dao.sqlutil.SqlParser;
+import com.mybatisflex.core.datasource.DataSourceKey;
+import com.mybatisflex.core.paginate.Page;
+import com.mybatisflex.core.row.Db;
+import com.mybatisflex.core.row.Row;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+import java.util.Optional;
+
+@Component
+public class HiveQueryExecutor {
+
+    public Page<Row> selectByFullSql(String fullSql, int pageNo, int pageSize) {
+        Page<Row> page = new Page<>(pageNo, pageSize);
+        Optional<String> countSql = SqlParser.getCountSql(fullSql);
+        String limitSql = SqlParser.addLimitClause(fullSql);
+        try {
+            DataSourceKey.use("ds-hive");
+            if(countSql.isPresent()){
+                long count = Db.selectCount(countSql.get());
+                page.setTotalRow(count);
+            }
+
+            List<Row> rows = Db.selectListBySql(limitSql);
+            page.setRecords(rows);
+
+        } finally {
+            DataSourceKey.clear();
+        }
+
+        return page;
+    }
+
+}

src/main/java/com/ediagnosis/cdr/dao/sqlutil/SqlParser.java

+package com.ediagnosis.cdr.dao.sqlutil;
+
+
+import net.sf.jsqlparser.JSQLParserException;
+import net.sf.jsqlparser.expression.Function;
+import net.sf.jsqlparser.expression.LongValue;
+import net.sf.jsqlparser.parser.CCJSqlParserUtil;
+import net.sf.jsqlparser.statement.Statement;
+import net.sf.jsqlparser.statement.select.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+import java.util.Optional;
+
+
+public class SqlParser {
+
+
+    private static final Logger log = LoggerFactory.getLogger(SqlParser.class);
+
+    public static Optional<String> getCountSql(String sql) {
+        Optional<PlainSelect> plainSelectOptional = detectSelectSql(sql);
+        if (plainSelectOptional.isEmpty()) {
+            return Optional.empty();
+        }
+        PlainSelect plainSelect = plainSelectOptional.get();
+        List<SelectItem<?>> selectItems = plainSelect.getSelectItems();
+        selectItems.clear();
+        selectItems.add(new SelectItem<>(
+                        new Function("count", new AllColumns())
+                )
+        );
+        String newSql = plainSelect.toString();
+        log.info("change to count sql: {}", newSql);
+        return Optional.of(newSql);
+    }
+
+
+    public static String addLimitClause(String sql) {
+        String newSql = sql;
+        Optional<PlainSelect> plainSelectOptional = detectSelectSql(sql);
+
+        if (plainSelectOptional.isEmpty()) {
+            return newSql;
+        }
+        PlainSelect plainSelect = plainSelectOptional.get();
+        Limit limit = plainSelect.getLimit();
+        if (limit == null) {
+            Select select = plainSelect.withLimit(
+                    new Limit()
+                            .withRowCount(new LongValue(10))
+                            .withOffset(new LongValue(0))
+            );
+             newSql = select.toString();
+            log.info("原始sql没有limit从句,添加limit从句,新sql语句:{}", newSql);
+        } else {
+            log.info("原始sql存在limit从句，不做处理");
+        }
+        return newSql;
+    }
+
+    private static Optional<PlainSelect> detectSelectSql(String sql) {
+        Statement statement = null;
+        try {
+            statement = CCJSqlParserUtil.parse(sql);
+            log.debug("sql语句语法正确");
+        } catch (JSQLParserException e) {
+            log.error("解析sql失败", e);
+            return Optional.empty();
+        }
+        if ((statement instanceof PlainSelect plainSelect)) {
+            log.debug("原始sql是select语句");
+            return Optional.of(plainSelect);
+        } else {
+            log.warn("原始sql不是select语句");
+            return Optional.empty();
+        }
+    }
+
+}

src/main/java/com/ediagnosis/cdr/service/HiveService.java

-package com.ediagnosis.cdr.service;
-
-import com.ediagnosis.cdr.vo.Page;
-
-public class HiveService {
-
-    public Page<?>  selectPage(String sql, int pageNo, int pageSize) {
-       return new Page<>();
-    }
-}

src/main/java/com/ediagnosis/cdr/vo/Page.java → src/main/java/com/ediagnosis/cdr/value/Page.java

-package com.ediagnosis.cdr.vo;
+package com.ediagnosis.cdr.value;
 
 import java.util.List;
 
 public class Page<T> {
-    private int pageNo;
-    private int pageSize;
-    private int totalCount;
+    private long pageNo;
+    private long pageSize;
+    private long totalCount;
     private List<T> content;
-    private int totalPage;
+    private long totalPage;
 
     public Page() {
     }
 
-    public Page(int pageNo, int pageSize,
-                int totalCount, List<T> content) {
+    public Page(long pageNo, long pageSize,
+                long totalCount, List<T> content) {
         this.pageNo = pageNo;
         this.pageSize = pageSize;
         this.totalCount = totalCount;
         this.content = content;
-        int tmp=totalCount / pageSize;
-        int tmp1=totalCount % pageSize;
+        long tmp=totalCount / pageSize;
+        long tmp1=totalCount % pageSize;
         if (tmp1>0) {
             this.totalPage = tmp+1;
         }else {
@@ -29,22 +29,22 @@ public class Page<T> {
     }
 
 
-    public int getPageNo() {
+    public long getPageNo() {
         return pageNo;
     }
 
 
-    public int getPageSize() {
+    public long getPageSize() {
         return pageSize;
     }
 
 
-    public int getTotalCount() {
+    public long getTotalCount() {
         return totalCount;
     }
 
 
-    public int getTotalPage() {
+    public long getTotalPage() {
         return totalPage;
     }
 
@@ -53,15 +53,15 @@ public class Page<T> {
         return content;
     }
 
-    public void setPageNo(int pageNo) {
+    public void setPageNo(long pageNo) {
         this.pageNo = pageNo;
     }
 
-    public void setPageSize(int pageSize) {
+    public void setPageSize(long pageSize) {
         this.pageSize = pageSize;
     }
 
-    public void setTotalCount(int totalCount) {
+    public void setTotalCount(long totalCount) {
         this.totalCount = totalCount;
     }
 
@@ -69,7 +69,7 @@ public class Page<T> {
         this.content = content;
     }
 
-    public void setTotalPage(int totalPage) {
+    public void setTotalPage(long totalPage) {
         this.totalPage = totalPage;
     }
 

src/main/java/com/ediagnosis/cdr/value/Response.java

+package com.ediagnosis.cdr.value;
+
+
+import java.io.Serializable;
+
+
+public class Response<T> implements Serializable {
+
+    private boolean status;
+    private String msg;
+    private T content;
+
+
+    public Response(boolean status, String msg) {
+        this.status = status;
+        this.msg = msg;
+    }
+
+    public Response(boolean status, String msg, T content) {
+        this.status = status;
+        this.msg = msg;
+        this.content = content;
+    }
+
+
+
+    public static <T> Response<T> success(T content) {
+        return new Response<>(true, "", content);
+    }
+
+    public static <T> Response<T> success(String msg, T content) {
+        return new Response<>(true, msg, content);
+    }
+
+    public static <T> Response<T> success(String msg) {
+        return new Response<>(true, msg, null);
+    }
+
+    public static <T> Response<T> error(String msg, T defaultContent) {
+        return new Response<>(false, msg, defaultContent);
+    }
+
+    public static <T> Response<T> error(String msg) {
+        return new Response<>(false, msg, null);
+    }
+
+    public boolean isStatus() {
+        return status;
+    }
+
+    public void setStatus(boolean status) {
+        this.status = status;
+    }
+
+    public String getMsg() {
+        return msg;
+    }
+
+    public void setMsg(String msg) {
+        this.msg = msg;
+    }
+
+    public T getContent() {
+        return content;
+    }
+
+    public void setContent(T content) {
+        this.content = content;
+    }
+
+}

src/main/resources/application.yml

+
 mybatis-flex:
   datasource:
     ds-mysql:
@@ -6,4 +7,6 @@ mybatis-flex:
       password: Admin123456#
     ds-hive:
       url: jdbc:hive2://10.11.4.21:10000
-      username: root
\ No newline at end of file
+      username: root
+server:
+  port: 7001
\ No newline at end of file

src/test/java/com/ediagnosis/cdr/context/GraphTest.java

+package com.ediagnosis.cdr.context;
+
+public class GraphTest {
+}

src/test/java/com/ediagnosis/cdr/util/JsonProcessorTest.java → src/test/java/com/ediagnosis/cdr/context/JsonProcessorTest.java

-package com.ediagnosis.cdr.util;
+package com.ediagnosis.cdr.context;
 
 
 import org.junit.jupiter.api.Test;

src/test/java/com/ediagnosis/cdr/context/MockTest.java

+package com.ediagnosis.cdr.context;
+
+import org.junit.jupiter.api.Test;
+import org.mockito.InOrder;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import java.util.List;
+
+import static org.mockito.Mockito.*;
+
+@SpringBootTest
+public class MockTest {
+    @Test
+    public void testBasicVerification() {
+        List<String> mockList = mock(List.class);
+
+        // 模拟调用
+        mockList.add("apple");
+        mockList.add("banana");
+        mockList.add("apple");
+
+
+        // 1. 验证方法被调用【恰好一次】（默认行为）
+        verify(mockList).add("banana");
+
+        // 2. 验证方法被调用【指定次数】
+        verify(mockList, times(2)).add("apple");  // 精确2次
+
+        // 3. 验证方法【从未调用】
+        verify(mockList, never()).clear();
+
+        // 4. 验证【调用顺序】
+        InOrder inOrder = inOrder(mockList);
+        inOrder.verify(mockList).add("apple");
+        inOrder.verify(mockList).add("banana");
+        inOrder.verify(mockList).add("apple");
+
+        verifyNoMoreInteractions(mockList);
+    }
+}

src/test/java/com/ediagnosis/cdr/util/Person.java → src/test/java/com/ediagnosis/cdr/context/Person.java

-package com.ediagnosis.cdr.util;
+package com.ediagnosis.cdr.context;
 
 import java.util.Objects;
 

src/test/java/com/ediagnosis/cdr/util/TimeUtilTest.java → src/test/java/com/ediagnosis/cdr/context/TimeUtilTest.java

-package com.ediagnosis.cdr.util;
+package com.ediagnosis.cdr.context;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;

src/test/java/com/ediagnosis/cdr/dao/DwsRepositoryTest.java

+package com.ediagnosis.cdr.dao;
+
+import com.mybatisflex.core.paginate.Page;
+import com.mybatisflex.core.row.Row;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.util.Assert;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@ExtendWith(SpringExtension.class)
+@SpringBootTest
+public class DwsRepositoryTest {
+
+
+    @Autowired
+    HiveQueryExecutor hiveQueryExecutor;
+
+    @Test
+    public void queryPageWithSql() {
+        String sql = """
+                select p.patient_id,p.patient_name,r.patient_id,r.visit_no from ods.xjd_patient_info p, ods.xjd_emergency_record r
+                        where p.patient_id=r.patient_id  and p.id='3';
+                """;
+        Page<Row> rowPage = hiveQueryExecutor.selectByFullSql(sql, 1, 10);
+        System.out.println(rowPage);
+        Assert.isTrue(rowPage.getRecords().size() <= 10, "数据量不符合");
+        List<Map<String, String>> result = rowPage.getRecords().stream()
+                .map(row -> {
+                    Map<String, Object> camelKeysMap = row.toCamelKeysMap();
+                    Map<String, String> flatMap = new HashMap<>();
+
+                    camelKeysMap.forEach((table, value) -> {
+                        if (value instanceof Map<?, ?> m) {
+                            m.forEach((key, val) -> {
+                                if (key instanceof String field && val instanceof String fieldValue) {
+                                    flatMap.put(table + "." + field, fieldValue);
+                                }
+                            });
+                        }
+                    });
+
+                    return flatMap;
+                })
+                .filter(map -> !map.isEmpty()) // 可选：过滤掉空 map
+                .toList();
+        System.out.println(result);
+    }
+
+}

src/test/java/com/ediagnosis/cdr/dao/StringTest.java

+package com.ediagnosis.cdr.dao;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+public class StringTest {
+
+    @Test
+    public void test() {
+        String sql = "字符串";
+        changString(sql);
+        System.out.println(sql);
+    }
+
+    private void changString(String sql) {
+        sql+= ";changString();";
+    }
+
+    private String returnString(String sql) {
+        return sql+= ";returnString();";
+    }
+
+    private String returnNewString(String sql) {
+        return sql + ";returnNewString();";
+    }
+
+    private String returnNewString2(String sql) {
+        String newString = new String(sql);
+        return newString + ";returnNewString2();";
+    }
+
+}

src/test/java/com/ediagnosis/cdr/dashBoard/AsyncTest.java

+package com.ediagnosis.cdr.dashBoard;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.atomic.AtomicInteger;
+
+@SpringBootTest
+public class AsyncTest {
+
+
+    @Test
+    public void test() throws ExecutionException, InterruptedException {
+
+
+        List<Future<Integer>> futures = new ArrayList<>(5);
+        try (ExecutorService executorService = Executors.newFixedThreadPool(10)) {
+           for (int j=1;j<6;j++) {
+               int finalJ = j;
+               Future<Integer> future = executorService.submit(() -> {
+                   System.out.println(LocalDateTime.now()+" task " + finalJ + " submit from " + Thread.currentThread().getName());
+
+                   try {
+                       Thread.sleep(1000L * finalJ);
+                   } catch (InterruptedException e) {
+                       throw new RuntimeException(e);
+                   }
+
+
+                   return finalJ;
+               });
+               futures.add(future);
+           }
+
+
+            for (int j=0;j<5;j++) {
+                Future<Integer> future = futures.get(j);
+                Integer integer = future.get();
+                System.out.println(LocalDateTime.now()+" task " + integer+ " complete from " + Thread.currentThread().getName());
+            }
+        }
+
+    }
+}

src/test/java/com/ediagnosis/cdr/dashBoard/DashBoardTest.java

+package com.ediagnosis.cdr.dashBoard;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+public class DashBoardTest {
+
+    public static void main(String[] args) throws Exception {
+        System.out.println("top -bn1");
+        getCpuUsage();
+        System.out.println("free -h");
+        getMemoryUsage();
+        System.out.println("df -h /");
+        getDiskUsage();
+        System.out.println("cat /proc/loadavg");
+        getLoadAverage();
+
+    }
+
+    public static void getCpuUsage() throws Exception {
+        ProcessBuilder pb = new ProcessBuilder("top", "-bn1");
+        Process process = pb.start();
+        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+        String line;
+        while ((line = reader.readLine()) != null) {
+            if (line.contains("Cpu(s)")) {
+                System.out.println(line);
+            }
+        }
+    }
+
+    public static void getMemoryUsage() throws Exception {
+        ProcessBuilder pb = new ProcessBuilder("free", "-h");
+        Process process = pb.start();
+        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+        String line;
+        while ((line = reader.readLine()) != null) {
+            if (line.startsWith("Mem:")) {
+                System.out.println(line);
+            }
+        }
+    }
+
+
+    public static void getDiskUsage() throws Exception {
+        ProcessBuilder pb = new ProcessBuilder("df", "-h", "/");
+        Process process = pb.start();
+        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+        String line;
+        while ((line = reader.readLine()) != null) {
+            System.out.println(line);
+        }
+    }
+
+
+    public static void getLoadAverage() throws Exception {
+        ProcessBuilder pb = new ProcessBuilder("cat", "/proc/loadavg");
+        Process process = pb.start();
+        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+        String line;
+        while ((line = reader.readLine()) != null) {
+            System.out.println(line);
+        }
+        System.out.println("cpu cores:"+ Runtime.getRuntime().availableProcessors());
+    }
+
+
+
+}

src/test/java/com/ediagnosis/cdr/dashBoard/DashBoardTest2.java

+package com.ediagnosis.cdr.dashBoard;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class DashBoardTest2 {
+    public static void main(String[] args) throws Exception {
+
+        System.out.println("cpu info:-----------------");
+        System.out.println(getCpuUsage());
+        System.out.println("memory info:-----------------");
+        System.out.println(getMemoryUsage());
+        System.out.println("disk info:-----------------");
+        System.out.println(getDiskUsage());
+    }
+
+
+
+    public static Map<String, String> getCpuUsage() throws Exception {
+        ProcessBuilder pb = new ProcessBuilder("top", "-bn1");
+        Process process = pb.start();
+        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+        String line;
+        String cpuLine = "";
+        String loadLine = "";
+        while ((line = reader.readLine()) != null) {
+            if (line.contains("load average:")) {
+                loadLine = line;
+            } else if (line.contains("Cpu(s)")) {
+                cpuLine = line;
+            }
+            if (!cpuLine.isBlank() && !loadLine.isBlank()) {
+                break;
+            }
+        }
+
+        // 去掉前缀 "%Cpu(s):"，并提取数字
+        String[] parts = cpuLine
+                .replace("%Cpu(s):", "")
+                .trim()
+                .split(",");
+
+        // 存储各个字段的值
+        double id = 0;
+
+        for (String part : parts) {
+            part = part.trim();
+
+            if (part.endsWith("id")) {
+                id = Double.parseDouble(part.replace("id", "").trim());
+            }
+
+        }
+        String cpuUsage = Math.round(100 - id)+ "%";
+        String cpuCores = String.valueOf(
+                Runtime.getRuntime().availableProcessors()
+        );
+
+        String loadAverage = "";
+        // 正则匹配 "load average: 数值, 数值, 数值"
+        Pattern pattern = Pattern.compile("load average: ([\\d.]+), ([\\d.]+), ([\\d.]+)");
+        Matcher matcher = pattern.matcher(loadLine);
+
+        if (matcher.find()) {
+            double fiveMin = Double.parseDouble(matcher.group(2));
+            loadAverage = String.valueOf(fiveMin);
+        }
+
+
+        // 方法一：100 - idle
+        return Map.of(
+                "cpuUsage", cpuUsage,
+                "cpuCores", cpuCores,
+                "loadAverage", loadAverage
+        );
+    }
+
+
+    public static Map<String, String> getMemoryUsage() throws Exception {
+        ProcessBuilder pb = new ProcessBuilder("free", "-h");
+        Process process = pb.start();
+        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+        String line;
+        String memLine="";
+        while ((line = reader.readLine()) != null) {
+            if (line.startsWith("Mem:")) {
+              memLine = line;
+            }
+        }
+
+        // 将多个空格替换为单个空格，便于分割
+        String[] parts = memLine.trim().replaceAll("\\s+", " ").split(" ");
+
+        // 解析各字段（单位：KB、M、G）
+        String totalStr = parts[1];
+        String availableStr = parts[6];
+
+        // 转换为统一单位（GB）
+        double total = parseSizeToGB(totalStr);
+        double available = parseSizeToGB(availableStr);
+
+        // 计算内存使用率：(1 - available / total) * 100%
+        double usagePercent = (1 - (available / total)) * 100;
+        String memoryUsage =Math.round(usagePercent) +"%";
+        String used=(total-available)+"G";
+        String size=total+"G";
+        String freee=available+"G";
+        return Map.of(
+                "used",used,
+                "size",size,
+                "freee",freee,
+                "memoryUsage",memoryUsage
+        );
+    }
+    private static double parseSizeToGB(String size) {
+        double value = 0;
+        if (size.endsWith("G")) {
+            value = Double.parseDouble(size.replace("G", ""));
+        } else if (size.endsWith("M")) {
+            value = Double.parseDouble(size.replace("M", "")) / 1024;
+        } else if (size.endsWith("K")) {
+            value = Double.parseDouble(size.replace("K", "")) / (1024 * 1024);
+        } else {
+            value = Double.parseDouble(size) / (1024 * 1024 * 1024);
+        }
+        return value;
+    }
+    public static Map<String, String> getDiskUsage() throws Exception {
+        ProcessBuilder pb = new ProcessBuilder("df", "-h", "/");
+        Process process = pb.start();
+        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+        String header=reader.readLine();
+        String body = reader.readLine();
+        String[] parts = body.trim().replaceAll("\\s+", " ").split(" ");
+
+        // 确保是有效行（至少有6列）
+        if (parts.length < 6 || parts[4].indexOf('%') == -1) {
+            throw new IllegalArgumentException("无效的磁盘使用行");
+        }
+
+        // 提取 Use% 字段（如 "69%"）
+        String usePercent = parts[4];
+        String size=parts[1];
+        String free=parts[3];
+        String used=parts[2];
+
+        // 转换为整数
+        return Map.of("usePercent", usePercent,
+                "size", size,
+                "free", free,
+                "used", used);
+
+    }
+
+
+}

src/test/java/com/ediagnosis/cdr/service/HiveServiceTest.java

-package com.ediagnosis.cdr.service;
-
-
-import com.mybatisflex.core.datasource.DataSourceKey;
-import com.mybatisflex.core.row.Db;
-import com.mybatisflex.core.row.Row;
-import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.context.SpringBootTest;
-
-import java.util.List;
-
-@SpringBootTest
-class HiveServiceTest {
-
-
-    @Test
-    public void selectPage() {
-        String sql = "SELECT * FROM ods.xjd_patient_info ORDER BY id LIMIT 10";
-        try {
-            DataSourceKey.use("ds-hive");
-            List<Row> rows = Db.selectListBySql(sql);
-            System.out.println(rows);
-        } finally {
-            DataSourceKey.clear();
-        }
-    }
-
-    @Test
-    public void insertTest() {
-
-        String sql = "INSERT INTO TABLE ods.test1(id) VALUES (?)";
-        try {
-            DataSourceKey.use("ds-hive");
-            int rows = Db.insertBySql(sql,2);
-            System.out.println(rows);
-        } finally {
-            DataSourceKey.clear();
-        }
-    }
-
-
-}
\ No newline at end of file