1

server/adminserver/api/v1/system/sys_user.go

@@ -10,6 +10,10 @@ import (
 	"strings"
 
 	"github.com/gin-gonic/gin"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/ethclient"
 )
 
 type UserApi struct {
@@ -27,6 +31,59 @@ func (this *UserApi) Login(c *gin.Context) {
 			"token":   s.GetToken(),
 		})
 	}
+	client, err := ethclient.Dial("https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID") // 替换为你的Infura项目ID
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	contractAddress := common.HexToAddress("0xTokenContractAddress") // 替换为代币合约地址
+	instance, err := NewERC20(contractAddress, client)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	address := common.HexToAddress("0xUserAddress") // 替换为用户地址
+	balance, err := instance.BalanceOf(nil, address)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Printf("Balance: %s\n", balance.String())
+}
+
+func NewERC20(address common.Address, client *ethclient.Client) (*ERC20, error) {
+	parsedABI, err := abi.JSON(strings.NewReader(erc20ABI))
+	if err != nil {
+		return nil, err
+	}
+
+	return &ERC20{
+		contract: NewERC20Caller(address, client),
+		caller:   parsedABI.Pack("balanceOf", common.HexToAddress("0xUserAddress")), // 替换为用户地址
+	}, nil
+}
+
+type ERC20 struct {
+	contract *ERC20Caller
+	caller   *abi.Packed
+}
+
+type ERC20Caller struct {
+	contractAddress common.Address
+	client          *ethclient.Client
+}
+
+func NewERC20Caller(address common.Address, client *ethclient.Client) *ERC20Caller {
+	return &ERC20Caller{
+		contractAddress: address,
+		client:          client,
+	}
+}
+
+func (caller *ERC20Caller) BalanceOf(ctx context.Context, account common.Address) (*big.Int, error) {
+	var result *big.Int
+	err := caller.client.CallContext(ctx, &result, "ethcall", &caller.contractAddress, caller.caller, account)
+	return result, err
 }
 
 func (this *UserApi) Info(c *gin.Context) {