springboot 框架,若依框架, 带复选框的ztree只可以选择 最后一级节点,生成js代码,java代码

生成带有复选框的ztree只能选择最后一级节点的代码，可以使用Spring Boot框架和若依框架来实现。具体步骤如下：

1. 在Maven项目中引入若依框架的依赖，例如：

<dependency>
    <groupId>com.ruoyi</groupId>
    <artifactId>ruoyi-common</artifactId>
    <version>${ruoyi.version}</version>
</dependency>

2. 在Spring Boot的配置文件中配置MyBatis-Plus框架和Druid数据库连接池，例如：

# MyBatis-Plus配置
mybatis-plus.mapper-locations=classpath*:/mapper/**/*.xml
mybatis-plus.configuration.map-underscore-to-camel-case=true
mybatis-plus.global-config.db-config.id-type=auto
mybatis-plus.global-config.db-config.logic-delete-value=1
mybatis-plus.global-config.db-config.logic-not-delete-value=0
mybatis-plus.global-config.db-config.column-underline=true

# Druid连接池配置
spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true&useSSL=false&serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.druid.initial-size=1
spring.datasource.druid.min-idle=1
spring.datasource.druid.max-active=20
spring.datasource.druid.validation-query=SELECT 1 FROM DUAL
spring.datasource.druid.test-while-idle=true
spring.datasource.druid.test-on-borrow=false
spring.datasource.druid.test-on-return=false
spring.datasource.druid.pool-prepared-statements=true
spring.datasource.druid.max-pool-prepared-statement-per-connection-size=20
spring.datasource.druid.filters=stat,wall,log4j2
spring.datasource.druid.connection-properties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

3. 在Java代码中，创建一个Controller类和一个Service类，用于处理请求和查询数据库。例如：

@RestController
@RequestMapping("/tree")
public class TreeController {

    @Autowired
    private TreeService treeService;

    @GetMapping("/data")
    public List<TreeNode> getTreeData() {
        return treeService.getTreeData();
    }

}

@Service
public class TreeService {

    @Autowired
    private TreeMapper treeMapper;

    public List<TreeNode> getTreeData() {
        List<TreeNode> nodes = new ArrayList<>();
        List<Tree> trees = treeMapper.selectList(null);
        for (Tree tree : trees) {
            TreeNode node = new TreeNode();
            node.setId(tree.getId());
            node.setPid(tree.getPid());
            node.setName(tree.getName());
            node.setOpen(tree.getOpen());
            node.setChecked(tree.getChecked());
            nodes.add(node);
        }
        return nodes;
    }

}

4. 在Java代码中，定义一个实体类和一个Mapper接口，用于映射数据库表和执行SQL语句。例如：

@Data
public class Tree {

    @TableId(type = IdType.AUTO)
    private Long id;

    private Long pid;

    private String name;

    private Boolean open;

    private Boolean checked;

}

@Mapper
public interface TreeMapper extends BaseMapper<Tree> {

}

5. 在前端页面中引入ztree插件的JS和CSS文件，以及jQuery和layer等必要的依赖库。例如：

<link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/zTree.v3/3.5.49/css/zTreeStyle/zTreeStyle.min.css">
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script src="https://cdn.bootcdn.net/ajax/libs/layer/3.1.1/layer.min.js"></script>
<script src="https://cdn.bootcdn.net/ajax/libs/zTree.v3/3.5.49/js/jquery.ztree.core.min.js"></script>

6. 在前端页面中定义一个div元素和一个JavaScript函数，用于生成ztree树形结构。例如：

<div id="tree"></div>

<script>
    $(function() {
        $.ajax({
            url: "/tree/data",
            type: "GET",
            dataType: "json",
            success: function(data) {
                var setting = {
                    check: {
                        enable: true,
                        chkStyle: "checkbox",
                        chkboxType: { "Y": "", "N": "" }
                    },
                    data: {
                        simpleData: {
                            enable: true
                        }
                    },
                    callback: {
                        onClick: function(event, treeId, treeNode) {
                            // 点击节点时触发的事件
                        }
                    }
                };
                $.fn.zTree.init($("#tree"), setting, data);
            },
            error: function() {
                layer.alert("请求数据失败！");
            }
        });
    });
</script>

注意：以上代码仅供参考，需要根据具体情况进行修改和调整。