用Java设计一个资产信息管理系统，把代码表达

由于篇幅限制，我无法在这里完整地展示一个完整的资产信息管理系统的Java代码。但是，我可以给你提供一些基本的代码框架和实现思路，以供参考。

1. 系统管理：

实现系统管理需要定义一个User类和一个Role类，分别表示系统用户和用户角色。同时需要定义一个SystemManager类，实现系统管理的各种功能。例如：

public class User {
    private String username;
    private String password;
    private Role role;

    // getter and setter methods
}

public class Role {
    private String roleName;
    private List<String> permissions;

    // getter and setter methods
}

public class SystemManager {
    private List<User> users;
    private List<Role> roles;

    public void addUser(User user) {
        // add user to the system
    }

    public void deleteUser(User user) {
        // delete user from the system
    }

    public void addRole(Role role) {
        // add role to the system
    }

    public void deleteRole(Role role) {
        // delete role from the system
    }

    // other methods
}

2. 资产信息管理：

实现资产信息管理需要定义一个Asset类，表示资产信息。同时需要定义一个AssetManager类，实现资产信息管理的各种功能。例如：

public class Asset {
    private String assetId;
    private String assetName;
    private String assetType;
    private Date purchaseDate;
    private String purchaser;
    private int status;

    // getter and setter methods
}

public class AssetManager {
    private List<Asset> assets;

    public void addAsset(Asset asset) {
        // add asset to the system
    }

    public void deleteAsset(Asset asset) {
        // delete asset from the system
    }

    public Asset searchAssetById(String id) {
        // search asset by id
    }

    public List<Asset> searchAssetByName(String name) {
        // search asset by name
    }

    public void updateAsset(Asset asset) {
        // update asset information
    }

    // other methods
}

3. 人员信息管理：

实现人员信息管理需要定义一个Person类，表示人员信息。同时需要定义一个PersonManager类，实现人员信息管理的各种功能。例如：

public class Person {
    private String personId;
    private String name;
    private String department;
    private String position;

    // getter and setter methods
}

public class PersonManager {
    private List<Person> persons;

    public void addPerson(Person person) {
        // add person to the system
    }

    public void deletePerson(Person person) {
        // delete person from the system
    }

    public Person searchPersonById(String id) {
        // search person by id
    }

    public List<Person> searchPersonByName(String name) {
        // search person by name
    }

    public void updatePerson(Person person) {
        // update person information
    }

    // other methods
}

4. 资产领用、资产归还、资产报废：

实现资产领用、资产归还、资产报废需要在Asset类中定义一些额外的属性和方法，同时需要在AssetManager类中添加相应的功能方法。例如：

public class Asset {
    private String assetId;
    private String assetName;
    private String assetType;
    private Date purchaseDate;
    private String purchaser;
    private int status;
    private String borrower;
    private Date borrowDate;
    private String returner;
    private Date returnDate;
    private String scrapReason;

    // getter and setter methods

    public void borrowAsset(Person person) {
        // set borrower and borrow date
    }

    public void returnAsset() {
        // set returner and return date
    }

    public void scrapAsset(String reason) {
        // set scrap reason and change status to "scrap"
    }
}

public class AssetManager {
    private List<Asset> assets;

    public void borrowAsset(String assetId, Person person) {
        // borrow asset and update asset information
    }

    public void returnAsset(String assetId) {
        // return asset and update asset information
    }

    public void scrapAsset(String assetId, String reason) {
        // scrap asset and update asset information
    }

    // other methods
}

以上是一个简单的基于Java的资产信息管理系统的设计方案和部分代码示例。具体实现方式还需要根据需求和实际情况进行调整和优化。